Proof theory is a branch of mathematical logic that represents proofs as formal mathematical objects, facilitating their analysis by mathematical techniques. Proofs are typically presented as inductively-defined data structures such as plain lists, boxed lists, or trees, which are constructed according to the axioms and rules of inference of the logical system. As such, proof theory is syntactic in nature, in contrast to model theory, which is semantic in nature. Together with model theory, axiomatic set theory, and recursion theory, proof theory is one of the so-called ''four pillars'' of the foundations of mathematics.

Proof theory is important in philosophical logic, where the primary interest is in the idea of a proof-theoretic semantics, an idea which depends upon technical ideas in structural proof theory to be feasible.

History

Although the formalisation of logic was much advanced by the work of such figures as Gottlob Frege, Giuseppe Peano, Bertrand Russell, and Richard Dedekind, the story of modern proof theory is often seen as being established by David Hilbert, who initiated what is called Hilbert's program in the foundations of mathematics. Kurt Gödel's seminal work on proof theory first advanced, then refuted this program: his completeness theorem initially seemed to bode well for Hilbert's aim of reducing all mathematics to a finitist formal system; then his incompleteness theorems showed that this is unattainable. All of this work was carried out with the proof calculi called the Hilbert systems.

In parallel, the foundations of structural proof theory were being founded. Jan Łukasiewicz suggested in 1926 that one could improve on Hilbert systems as a basis for the axiomatic presentation of logic if one allowed the drawing of conclusions from assumptions in the inference rules of the logic. In response to this Stanisław Jaśkowski (1929) and Gerhard Gentzen (1934) independently provided such systems, called calculi of natural deduction, with Gentzen's approach introducing the idea of symmetry between the grounds for asserting propositions, expressed in introduction rules, and the consequences of accepting propositions in the elimination rules, an idea that has proved very important in proof theory. Gentzen (1934) further introduced the idea of the sequent calculus, a calculus advanced in a similar spirit that better expressed the duality of the logical connectives, and went on to make fundamental advances in the formalisation of intuitionistic logic, and provide the first combinatorial proof of the consistency of Peano arithmetic. Together, the presentation of natural deduction and the sequent calculus introduced the fundamental idea of analytic proof to proof theory,

==Formal and informal proof==

The ''informal'' proofs of everyday mathematical practice are unlike the ''formal'' proofs of proof theory. They are rather like high-level sketches that would allow an expert to reconstruct a formal proof at least in principle, given enough time and patience. For most mathematicians, writing a fully formal proof is too pedantic and long-winded to be in common use.

Formal proofs are constructed with the help of computers in interactive theorem proving. Significantly, these proofs can be checked automatically, also by computer. (Checking formal proofs is usually simple, whereas ''finding'' proofs (automated theorem proving) is generally hard.) An informal proof in the mathematics literature, by contrast, requires weeks of peer review to be checked, and may still contain errors.

Kinds of proof calculi

The three most well-known styles of proof calculi are:

The Hilbert calculi

The natural deduction calculi

The sequent calculi

Each of these can give a complete and axiomatic formalization of propositional or predicate logic of either the classical or intuitionistic flavour, almost any modal logic, and many substructural logics, such as relevance logic or linear logic. Indeed it is unusual to find a logic that resists being represented in one of these calculi.

Consistency proofs

As previously mentioned, the spur for the mathematical investigation of proofs in formal theories was Hilbert's program. The central idea of this program was that if we could give finitary proofs of consistency for all the sophisticated formal theories needed by mathematicians, then we could ground these theories by means of a metamathematical argument, which shows that all of their purely universal assertions (more technically their provable $\backslash Pi^0\_1$ sentences) are finitarily true; once so grounded we do not care about the non-finitary meaning of their existential theorems, regarding these as pseudo-meaningful stipulations of the existence of ideal entities.

The failure of the program was induced by Kurt Gödel's incompleteness theorems, which showed that any ω-consistent theory that is sufficiently strong to express certain simple arithmetic truths, cannot prove its own consistency, which on Gödel's formulation is a $\backslash Pi^0\_1$ sentence.

Much investigation has been carried out on this topic since, which has in particular led to:

Refinement of Gödel's result, particularly J. Barkley Rosser's refinement, weakening the above requirement of ω-consistency to simple consistency;

Axiomatisation of the core of Gödel's result in terms of a modal language, provability logic;

Transfinite iteration of theories, due to Alan Turing and Solomon Feferman;

The recent discovery of self-verifying theories, systems strong enough to talk about themselves, but too weak to carry out the diagonal argument that is the key to Gödel's unprovability argument.

See also Mathematical logic

Structural proof theory

Structural proof theory is the subdiscipline of proof theory that studies proof calculi that support a notion of analytic proof. The notion of analytic proof was introduced by Gentzen for the sequent calculus; there the analytic proofs are those that are cut-free. His natural deduction calculus also supports a notion of analytic proof, as shown by Dag Prawitz. The definition is slightly more complex: we say the analytic proofs are the normal forms, which are related to the notion of normal form in term rewriting. More exotic proof calculi such as Jean-Yves Girard's proof nets also support a notion of analytic proof.

Structural proof theory is connected to type theory by means of the Curry-Howard correspondence, which observes a structural analogy between the process of normalisation in the natural deduction calculus and beta reduction in the typed lambda calculus. This provides the foundation for the intuitionistic type theory developed by Per Martin-Löf, and is often extended to a three way correspondence, the third leg of which are the cartesian closed categories.

Proof-theoretic semantics

In linguistics, type-logical grammar, categorial grammar and Montague grammar apply formalisms based on structural proof theory to give a formal natural language semantics.

Tableau systems

Analytic tableaux apply the central idea of analytic proof from structural proof theory to provide decision procedures and semi-decision procedures for a wide range of logics.

Ordinal analysis

Ordinal analysis is a powerful technique for providing combinatorial consistency proofs for theories formalising arithmetic and analysis.

Logics from proof analysis

Several important logics have come from insights into logical structure arising in structural proof theory.

See also

Proof techniques

Intermediate logics

Proof (truth)

Model theory

Notes

References

J. Avigad, E.H. Reck (2001). “Clarifying the nature of the infinite”: the development of metamathematics and proof theory. Carnegie-Mellon Technical Report CMU-PHIL-120.

J. Barwise (ed., 1978). Handbook of Mathematical Logic. North-Holland.

2πix.com: Logic Part of a series of articles covering mathematics and logic.

A. S. Troelstra, H. Schwichtenberg (1996). ''Basic Proof Theory''. In series ''Cambridge Tracts in Theoretical Computer Science'', Cambridge University Press, ISBN 0-521-77911-1.

G. Gentzen (1935/1969). Investigations into logical deduction. In M. E. Szabo, editor, ''Collected Papers of Gerhard Gentzen''. North-Holland. Translated by Szabo from “Untersuchungen über das logische Schliessen”, Mathematisches Zeitschrift 39: 176-210, 405-431.

L. Moreno-Armella & B.Sriraman (2005).''Structural Stability and Dynamic Geometry: Some Ideas on Situated Proof. International Reviews on Mathematical Education. Vol. 37, no.3, pp. 130–139''

J. von Plato (2008). The Development of Proof Theory. Stanford Encyclopedia of Philosophy.

*P * Category:Metalogic

ar:نظرية البرهان bn:প্রমাণ তত্ত্ব de:Beweistheorie es:Teoría de la demostración fa:نظریه برهان fr:Théorie de la démonstration ko:증명이론 he:תורת ההוכחות nl:Bewijstheorie ja:証明論 pl:Teoria dowodu ru:Теория доказательств zh:证明论

Coordinates	28°36′36″N77°13′48″N
Name	Charles Darwin
Alt	Three quarter length studio photo showing Darwin's characteristic large forehead and bushy eyebrows with deep set eyes, pug nose and mouth set in a determined look. He is bald on top, with dark hair and long side whiskers but no beard or moustache. His jacket is dark, with very wide lapels, and his trousers are a light check pattern. His shirt has an upright wing collar, and his cravat is tucked into his waistcoat which is a light fine checked pattern.
Birth date	February 12, 1809
Birth place	Mount House, Shrewsbury, Shropshire, England
Death date	April 19, 1882
Death place	Down House, Downe, Kent, England
Residence	England
Citizenship	British
Nationality	British
Ethnicity	English
Fields	Naturalist
Workplaces	Geological Society of London
Alma mater	(tertiary education): University of Edinburgh (medicine) University of Cambridge (ordinary Bachelor of Arts)
Doctoral advisor
Academic advisors	John Stevens HenslowAdam Sedgwick
Doctoral students
Known for	''The Voyage of the Beagle''''On the Origin of Species''evolution by natural selection,common descent
Influences	Alexander von HumboldtJohn HerschelCharles Lyell
Influenced	Joseph Dalton HookerThomas Henry HuxleyGeorge RomanesErnst Haeckel
Awards	Royal Medal (1853)Wollaston Medal (1859)Copley Medal (1864)
Signature	Charles Darwin Signature.svg
Signature alt	"Charles Darwin", with the surname underlined by a downward curve that mimics the curve of the initial "C"
Spouse	Emma Darwin (1839-1896) }}

Charles Robert Darwin FRS (12 February 1809 – 19 April 1882) was an English naturalist. He established that all species of life have descended over time from common ancestry, and proposed the scientific theory that this branching pattern of evolution resulted from a process that he called natural selection.

He published his theory with compelling evidence for evolution in his 1859 book ''On the Origin of Species'', overcoming scientific rejection of earlier concepts of transmutation of species. By the 1870s the scientific community and much of the general public accepted evolution as a fact. However, many favoured competing explanations and it was not until the emergence of the modern evolutionary synthesis from the 1930s to the 1950s that a broad consensus developed that natural selection was the basic mechanism of evolution. In modified form, Darwin's scientific discovery is the unifying theory of the life sciences, explaining the diversity of life.

Darwin's early interest in nature led him to neglect his medical education at the University of Edinburgh; instead, he helped to investigate marine invertebrates. Studies at the University of Cambridge encouraged his passion for natural science. His five-year voyage on established him as an eminent geologist whose observations and theories supported Charles Lyell's uniformitarian ideas, and publication of his journal of the voyage made him famous as a popular author.

Puzzled by the geographical distribution of wildlife and fossils he collected on the voyage, Darwin began detailed investigations and in 1838 conceived his theory of natural selection. Although he discussed his ideas with several naturalists, he needed time for extensive research and his geological work had priority. He was writing up his theory in 1858 when Alfred Russel Wallace sent him an essay which described the same idea, prompting immediate joint publication of both of their theories. Darwin's work established evolutionary descent with modification as the dominant scientific explanation of diversification in nature. In 1871, he examined human evolution and sexual selection in ''The Descent of Man, and Selection in Relation to Sex'', followed by ''The Expression of the Emotions in Man and Animals''. His research on plants was published in a series of books, and in his final book, he examined earthworms and their effect on soil.

In recognition of Darwin's pre-eminence as a scientist, he was honoured by a major ceremonial funeral in Westminster Abbey, where he was buried close to John Herschel and Isaac Newton. Darwin has been described as one of the most influential figures in human history.

Life

Childhood and education

Charles Robert Darwin was born in Shrewsbury, Shropshire, England on 12 February 1809 at his family home, the Mount. He was the fifth of six children of wealthy society doctor and financier Robert Darwin, and Susannah Darwin (''née'' Wedgwood). He was the grandson of Erasmus Darwin on his father's side, and of Josiah Wedgwood on his mother's side. Both families were largely Unitarian, though the Wedgwoods were adopting Anglicanism. Robert Darwin, himself quietly a freethinker, had baby Charles baptised in the Anglican Church, but Charles and his siblings attended the Unitarian chapel with their mother. The eight-year-old Charles already had a taste for natural history and collecting when he joined the day school run by its preacher in 1817. That July, his mother died. From September 1818, he joined his older brother Erasmus attending the nearby Anglican Shrewsbury School as a boarder.

Darwin spent the summer of 1825 as an apprentice doctor, helping his father treat the poor of Shropshire, before going to the University of Edinburgh Medical School with his brother Erasmus in October 1825. He found lectures dull and surgery distressing, so neglected his studies. He learned taxidermy from John Edmonstone, a freed black slave who had accompanied Charles Waterton in the South American rainforest, and often sat with this "very pleasant and intelligent man".

In Darwin's second year he joined the Plinian Society, a student natural history group whose debates strayed into radical materialism. He assisted Robert Edmond Grant's investigations of the anatomy and life cycle of marine invertebrates in the Firth of Forth, and on 27 March 1827 presented at the Plinian his own discovery that black spores found in oyster shells were the eggs of a skate leech. One day, Grant praised Lamarck's evolutionary ideas. Darwin was astonished, but had recently read the similar ideas of his grandfather Erasmus and remained indifferent. Darwin was rather bored by Robert Jameson's natural history course which covered geology including the debate between Neptunism and Plutonism. He learned classification of plants, and assisted with work on the collections of the University Museum, one of the largest museums in Europe at the time.

This neglect of medical studies annoyed his father, who shrewdly sent him to Christ's College, Cambridge, for a Bachelor of Arts degree as the first step towards becoming an Anglican parson. As Darwin was unqualified for the ''Tripos'', he joined the ''ordinary'' degree course in January 1828. He preferred riding and shooting to studying. His cousin William Darwin Fox introduced him to the popular craze for beetle collecting which Darwin pursued zealously, getting some of his finds published in Stevens' ''Illustrations of British entomology''. He became a close friend and follower of botany professor John Stevens Henslow and met other leading naturalists who saw scientific work as religious natural theology, becoming known to these dons as "the man who walks with Henslow". When his own exams drew near, Darwin focused on his studies and was delighted by the language and logic of William Paley's ''Evidences of Christianity''. In his final examination in January 1831 Darwin did well, coming tenth out of 178 candidates for the ''ordinary'' degree.

Darwin had to stay at Cambridge until June. He studied Paley's ''Natural Theology'' which made an argument for divine design in nature, explaining adaptation as God acting through laws of nature. He read John Herschel's new book which described the highest aim of natural philosophy as understanding such laws through inductive reasoning based on observation, and Alexander von Humboldt's ''Personal Narrative'' of scientific travels. Inspired with "a burning zeal" to contribute, Darwin planned to visit Tenerife with some classmates after graduation to study natural history in the tropics. In preparation, he joined Adam Sedgwick's geology course, then went with him in the summer for a fortnight to map strata in Wales. After a week with student friends at Barmouth, he returned home to find a letter from Henslow proposing Darwin as a suitable (if unfinished) gentleman naturalist for a self-funded place with captain Robert FitzRoy, more as a companion than a mere collector, on which was to leave in four weeks on an expedition to chart the coastline of South America. His father objected to the planned two-year voyage, regarding it as a waste of time, but was persuaded by his brother-in-law, Josiah Wedgwood, to agree to his son's participation.

Voyage of the ''Beagle''

Beginning on 27 December 1831, the voyage lasted almost five years and, as FitzRoy had intended, Darwin spent most of that time on land investigating geology and making natural history collections, while the ''Beagle'' surveyed and charted coasts. He kept careful notes of his observations and theoretical speculations, and at intervals during the voyage his specimens were sent to Cambridge together with letters including a copy of his journal for his family. He had some expertise in geology, beetle collecting and dissecting marine invertebrates, but in all other areas was a novice and ably collected specimens for expert appraisal. Despite suffering badly from seasickness, Darwin wrote copious notes while on board the ship. Most of his zoology notes are about marine invertebrates, starting with plankton collected in a calm spell.

On their first stop ashore at St. Jago, Darwin found that a white band high in the volcanic rock cliffs included seashells. FitzRoy had given him the first volume of Charles Lyell's ''Principles of Geology'' which set out uniformitarian concepts of land slowly rising or falling over immense periods, and Darwin saw things Lyell's way, theorising and thinking of writing a book on geology. In Brazil, Darwin was delighted by the tropical forest, but detested the sight of slavery.

At Punta Alta in Patagonia he made a major find of fossil bones of huge extinct mammals in cliffs beside modern seashells, indicating recent extinction with no signs of change in climate or catastrophe. He identified the little known ''Megatherium'' by a tooth and its association with bony armour which had at first seemed to him like a giant version of the armour on local armadillos. The finds brought great interest when they reached England. On rides with gauchos into the interior to explore geology and collect more fossils he gained social, political and anthropological insights into both native and colonial people at a time of revolution, and learnt that two types of rhea had separate but overlapping territories. Further south he saw stepped plains of shingle and seashells as raised beaches showing a series of elevations. He read Lyell's second volume and accepted its view of "centres of creation" of species, but his discoveries and theorising challenged Lyell's ideas of smooth continuity and of extinction of species.

Three Fuegians on board, who had been seized during the first ''Beagle'' voyage and had spent a year in England, were taken back to Tierra del Fuego as missionaries. Darwin found them friendly and civilised, yet their relatives seemed "miserable, degraded savages", as different as wild from domesticated animals. To Darwin the difference showed cultural advances, not racial inferiority. Unlike his scientist friends, he now thought there was no unbridgeable gap between humans and animals. A year on, the mission had been abandoned. The Fuegian they had named Jemmy Button lived like the other natives, had a wife, and had no wish to return to England.

Darwin experienced an earthquake in Chile and saw signs that the land had just been raised, including mussel-beds stranded above high tide. High in the Andes he saw seashells, and several fossil trees that had grown on a sand beach. He theorised that as the land rose, oceanic islands sank, and coral reefs round them grew to form atolls.

On the geologically new Galápagos Islands Darwin looked for evidence attaching wildlife to an older "centre of creation", and found mockingbirds allied to those in Chile but differing from island to island. He heard that slight variations in the shape of tortoise shells showed which island they came from, but failed to collect them, even after eating tortoises taken on board as food. In Australia, the marsupial rat-kangaroo and the platypus seemed so unusual that Darwin thought it was almost as though two distinct Creators had been at work. He found the Aborigines "good-humoured & pleasant", and noted their depletion by European settlement.

The ''Beagle'' investigated how the atolls of the Cocos (Keeling) Islands had formed, and the survey supported Darwin's theorising. FitzRoy began writing the official ''Narrative'' of the ''Beagle'' voyages, and after reading Darwin's diary he proposed incorporating it into the account. Darwin's ''Journal'' was eventually rewritten as a separate third volume, on natural history.

In Cape Town Darwin and FitzRoy met John Herschel, who had recently written to Lyell praising his uniformitarianism as opening bold speculation on "that mystery of mysteries, the replacement of extinct species by others" as "a natural in contradistinction to a miraculous process". When organising his notes as the ship sailed home, Darwin wrote that if his growing suspicions about the mockingbirds, the tortoises and the Falkland Islands Fox were correct, "such facts undermine the stability of Species", then cautiously added "would" before "undermine". He later wrote that such facts "seemed to me to throw some light on the origin of species".

Inception of Darwin's evolutionary theory

When the ''Beagle'' reached Falmouth, Cornwall, on 2 October 1836, Darwin was already a celebrity in scientific circles as in December 1835 Henslow had fostered his former pupil's reputation by giving selected naturalists a pamphlet of Darwin's geological letters. Darwin visited his home in Shrewsbury and saw relatives, then hurried to Cambridge to see Henslow, who advised on finding naturalists available to catalogue the collections and agreed to take on the botanical specimens. Darwin's father organised investments, enabling his son to be a self-funded gentleman scientist, and an excited Darwin went round the London institutions being fêted and seeking experts to describe the collections. Zoologists had a huge backlog of work, and there was a danger of specimens just being left in storage.

Charles Lyell eagerly met Darwin for the first time on 29 October and soon introduced him to the up-and-coming anatomist Richard Owen, who had the facilities of the Royal College of Surgeons to work on the fossil bones collected by Darwin. Owen's surprising results included other gigantic extinct ground sloths as well as the ''Megatherium'', a near complete skeleton of the unknown ''Scelidotherium'' and a hippopotamus-sized rodent-like skull named ''Toxodon'' resembling a giant capybara. The armour fragments were actually from ''Glyptodon'', a huge armadillo-like creature as Darwin had initially thought. These extinct creatures were related to living species in South America.

In mid-December Darwin took lodgings in Cambridge to organise work on his collections and rewrite his ''Journal''. He wrote his first paper, showing that the South American landmass was slowly rising, and with Lyell's enthusiastic backing read it to the Geological Society of London on 4 January 1837. On the same day, he presented his mammal and bird specimens to the Zoological Society. The ornithologist John Gould soon announced that the Galapagos birds that Darwin had thought a mixture of blackbirds, "gros-beaks" and finches, were, in fact, twelve separate species of finches. On 17 February Darwin was elected to the Council of the Geological Society, and Lyell's presidential address presented Owen's findings on Darwin's fossils, stressing geographical continuity of species as supporting his uniformitarian ideas.

Early in March, Darwin moved to London to be near this work, joining Lyell's social circle of scientists and experts such as Charles Babbage, who described God as a programmer of laws. Darwin stayed with his freethinking brother Erasmus, part of this Whig circle and close friend of writer Harriet Martineau who promoted Malthusianism underlying the controversial Whig Poor Law reforms to stop welfare from causing overpopulation and more poverty. As a Unitarian she welcomed the radical implications of transmutation of species, promoted by Grant and younger surgeons influenced by Geoffroy. Transmutation was anathema to Anglicans defending social order, but reputable scientists openly discussed the subject and there was wide interest in John Herschel's letter praising Lyell's approach as a way to find a natural cause of the origin of new species.

Gould met Darwin and told him that the Galápagos mockingbirds from different islands were separate species, not just varieties, and what Darwin had thought was a "wren" was also in the finch group. Darwin had not labelled the finches by island, but from the notes of others on the ''Beagle'', including FitzRoy, he allocated species to islands. The two rheas were also distinct species, and on 14 March Darwin announced how their distribution changed going southwards.

By mid-March, Darwin was speculating in his ''Red Notebook'' on the possibility that "one species does change into another" to explain the geographical distribution of living species such as the rheas, and extinct ones such as the strange ''Macrauchenia'' which resembled a giant guanaco. His thoughts on lifespan, asexual reproduction and sexual reproduction developed in his "B" notebook around mid-July on to variation in offspring "to adapt & alter the race to ''changing'' world" explaining the Galápagos tortoises, mockingbirds and rheas. He sketched branching descent, then a genealogical branching of a single evolutionary tree, in which "It is absurd to talk of one animal being higher than another", discarding Lamarck's independent lineages progressing to higher forms.

Overwork, illness, and marriage

While developing this intensive study of transmutation, Darwin became mired in more work. Still rewriting his ''Journal'', he took on editing and publishing the expert reports on his collections, and with Henslow's help obtained a Treasury grant of £1,000 to sponsor this multi-volume ''Zoology of the Voyage of H.M.S. Beagle'', a sum equivalent to about £}} in -2}}. He stretched the funding to include his planned books on geology, and agreed unrealistic dates with the publisher. As the Victorian era began, Darwin pressed on with writing his ''Journal'', and in August 1837 began correcting printer's proofs.

Darwin's health suffered from the pressure. On 20 September he had "an uncomfortable palpitation of the heart", so his doctors urged him to "knock off all work" and live in the country for a few weeks. After visiting Shrewsbury he joined his Wedgwood relatives at Maer Hall, Staffordshire, but found them too eager for tales of his travels to give him much rest. His charming, intelligent, and cultured cousin Emma Wedgwood, nine months older than Darwin, was nursing his invalid aunt. His uncle Jos pointed out an area of ground where cinders had disappeared under loam and suggested that this might have been the work of earthworms, inspiring "a new & important theory" on their role in soil formation which Darwin presented at the Geological Society on 1 November.

William Whewell pushed Darwin to take on the duties of Secretary of the Geological Society. After initially declining the work, he accepted the post in March 1838. Despite the grind of writing and editing the ''Beagle'' reports, Darwin made remarkable progress on transmutation, taking every opportunity to question expert naturalists and, unconventionally, people with practical experience such as farmers and pigeon fanciers. Over time his research drew on information from his relatives and children, the family butler, neighbours, colonists and former shipmates. He included mankind in his speculations from the outset, and on seeing an orangutan in the zoo on 28 March 1838 noted its child-like behaviour.

The strain took a toll, and by June he was being laid up for days on end with stomach problems, headaches and heart symptoms. For the rest of his life, he was repeatedly incapacitated with episodes of stomach pains, vomiting, severe boils, palpitations, trembling and other symptoms, particularly during times of stress such as attending meetings or making social visits. The cause of Darwin's illness remained unknown, and attempts at treatment had little success.

On 23 June he took a break and went "geologising" in Scotland. He visited Glen Roy in glorious weather to see the parallel "roads" cut into the hillsides at three heights. He later published his view that these were marine raised beaches, but then had to accept that they were shorelines of a proglacial lake.

Fully recuperated, he returned to Shrewsbury in July. Used to jotting down daily notes on animal breeding, he scrawled rambling thoughts about career and prospects on two scraps of paper, one with columns headed ''"Marry"'' and ''"Not Marry"''. Advantages included "constant companion and a friend in old age ... better than a dog anyhow", against points such as "less money for books" and "terrible loss of time." Having decided in favour, he discussed it with his father, then went to visit Emma on 29 July. He did not get around to proposing, but against his father's advice he mentioned his ideas on transmutation.

Continuing his research in London, Darwin's wide reading now included the sixth edition of Malthus's ''An Essay on the Principle of Population'' – }}

Malthus asserted that unless human population is kept in check, it increases in a geometric progression and soon exceeds food supply in what is known as a Malthusian catastrophe. Darwin was well prepared to see at once that this also applied to de Candolle's "warring of the species" of plants and the struggle for existence among wildlife, explaining how numbers of a species kept roughly stable. As species always breed beyond available resources, favourable variations would make organisms better at surviving and passing the variations on to their offspring, while unfavourable variations would be lost. This would result in the formation of new species. On 28 September 1838 he noted this insight, describing it as a kind of wedging, forcing adapted structures into gaps in the economy of nature as weaker structures were thrust out. By mid December he saw a similarity between farmers picking the best breeding stock and a Malthusian Nature selecting from chance variants so that "every part of newly acquired structure is fully practical and perfected", thinking this comparison "a beautiful part of my theory".

On 11 November, he returned to Maer and proposed to Emma, once more telling her his ideas. She accepted, then in exchanges of loving letters she showed how she valued his openness in sharing their differences, also expressing her strong Unitarian beliefs and concerns that his honest doubts might separate them in the afterlife. While he was house-hunting in London, bouts of illness continued and Emma wrote urging him to get some rest, almost prophetically remarking "So don't be ill any more my dear Charley till I can be with you to nurse you." He found what they called "Macaw Cottage" (because of its gaudy interiors) in Gower Street, then moved his "museum" in over Christmas. On 24 January 1839 Darwin was elected a Fellow of the Royal Society.

On 29 January Darwin and Emma Wedgwood were married at Maer in an Anglican ceremony arranged to suit the Unitarians, then immediately caught the train to London and their new home.

Preparing the theory of natural selection for publication

Darwin now had the framework of his theory of natural selection "by which to work", as his "prime hobby". His research included animal husbandry and extensive experiments with plants, finding evidence that species were not fixed and investigating many detailed ideas to refine and substantiate his theory. For fifteen years this work was in the background to his main occupation of writing on geology and publishing expert reports on the ''Beagle'' collections.

When FitzRoy's ''Narrative'' was published in May 1839, Darwin's ''Journal and Remarks'' was such a success as the third volume that later that year it was published on its own. Early in 1842, Darwin wrote about his ideas to Charles Lyell, who noted that his ally "denies seeing a beginning to each crop of species".

Darwin's book ''The Structure and Distribution of Coral Reefs'' on his theory of atoll formation was published in May 1842 after more than three years of work, and he then wrote his first "pencil sketch" of his theory of natural selection. To escape the pressures of London, the family moved to rural Down House in September. On 11 January 1844 Darwin mentioned his theorising to the botanist Joseph Dalton Hooker, writing with melodramatic humour "it is like confessing a murder". Hooker replied "There may in my opinion have been a series of productions on different spots, & also a gradual change of species. I shall be delighted to hear how you think that this change may have taken place, as no presently conceived opinions satisfy me on the subject."

By July, Darwin had expanded his "sketch" into a 230-page "Essay", to be expanded with his research results if he died prematurely. In November the anonymously published sensational best-seller ''Vestiges of the Natural History of Creation'' brought wide interest in transmutation. Darwin scorned its amateurish geology and zoology, but carefully reviewed his own arguments. Controversy erupted, and it continued to sell well despite contemptuous dismissal by scientists.

Darwin completed his third geological book in 1846. He now renewed a fascination and expertise in marine invertebrates, dating back to his student days with Grant, by dissecting and classifying the barnacles he had collected on the voyage, enjoying observing beautiful structures and thinking about comparisons with allied structures. In 1847, Hooker read the "Essay" and sent notes that provided Darwin with the calm critical feedback that he needed, but would not commit himself and questioned Darwin's opposition to continuing acts of creation.

In an attempt to improve his chronic ill health, Darwin went in 1849 to Dr. James Gully's Malvern spa and was surprised to find some benefit from hydrotherapy. Then in 1851 his treasured daughter Annie fell ill, reawakening his fears that his illness might be hereditary, and after a long series of crises she died.

In eight years of work on barnacles (Cirripedia), Darwin's theory helped him to find "homologies" showing that slightly changed body parts served different functions to meet new conditions, and in some genera he found minute males parasitic on hermaphrodites, showing an intermediate stage in evolution of distinct sexes. In 1853 it earned him the Royal Society's Royal Medal, and it made his reputation as a biologist. He resumed work on his theory of species in 1854, and in November realised that divergence in the character of descendants could be explained by them becoming adapted to "diversified places in the economy of nature".

Publication of the theory of natural selection

By the start of 1856, Darwin was investigating whether eggs and seeds could survive travel across seawater to spread species across oceans. Hooker increasingly doubted the traditional view that species were fixed, but their young friend Thomas Henry Huxley was firmly against evolution. Lyell was intrigued by Darwin's speculations without realising their extent. When he read a paper by Alfred Russel Wallace on the ''Introduction'' of species, he saw similarities with Darwin's thoughts and urged him to publish to establish precedence. Though Darwin saw no threat, he began work on a short paper. Finding answers to difficult questions held him up repeatedly, and he expanded his plans to a "big book on species" titled ''Natural Selection''. He continued his researches, obtaining information and specimens from naturalists worldwide including Wallace who was working in Borneo. The American botanist Asa Gray showed similar interests, and on 5 September 1857 Darwin sent Gray a detailed outline of his ideas including an abstract of ''Natural Selection''. In December, Darwin received a letter from Wallace asking if the book would examine human origins. He responded that he would avoid that subject, "so surrounded with prejudices", while encouraging Wallace's theorising and adding that "I go much further than you."

Darwin's book was only partly written when, on 18 June 1858, he received a paper from Wallace describing natural selection. Shocked that he had been "forestalled", Darwin sent it on to Lyell as requested by Wallace, and although Wallace had not asked for publication, Darwin suggested he would send it to any journal that Wallace chose. His family was in crisis with children in the village dying of scarlet fever, and he put matters in the hands of Lyell and Hooker. After some discussion, they decided on a joint presentation at the Linnean Society on 1 July of ''On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection''; however, Darwin's baby son died of the scarlet fever and he was too distraught to attend.

There was little immediate attention to this announcement of the theory; the president of the Linnean Society remarked in May 1859 that the year had not been marked by any revolutionary discoveries. Only one review rankled enough for Darwin to recall it later; Professor Samuel Haughton of Dublin claimed that "all that was new in them was false, and what was true was old." Darwin struggled for thirteen months to produce an abstract of his "big book", suffering from ill health but getting constant encouragement from his scientific friends. Lyell arranged to have it published by John Murray.

''On the Origin of Species'' proved unexpectedly popular, with the entire stock of 1,250 copies oversubscribed when it went on sale to booksellers on 22 November 1859. In the book, Darwin set out "one long argument" of detailed observations, inferences and consideration of anticipated objections. His only allusion to human evolution was the understatement that "light will be thrown on the origin of man and his history". His theory is simply stated in the introduction: }}

He put a strong case for common descent, but avoided the then controversial term "evolution", and at the end of the book concluded that: }}

Responses to publication

The book aroused international interest, with less controversy than had greeted the popular ''Vestiges of the Natural History of Creation''. Though Darwin's illness kept him away from the public debates, he eagerly scrutinised the scientific response, commenting on press cuttings, reviews, articles, satires and caricatures, and corresponded on it with colleagues worldwide. Darwin had only said "Light will be thrown on the origin of man", but the first review claimed it made a creed of the "men from monkeys" idea from ''Vestiges''. Amongst early favourable responses, Huxley's reviews swiped at Richard Owen, leader of the scientific establishment Huxley was trying to overthrow. In April, Owen's review attacked Darwin's friends and condescendingly dismissed his ideas, angering Darwin, but Owen and others began to promote ideas of supernaturally guided evolution.

The Church of England's response was mixed. Darwin's old Cambridge tutors Sedgwick and Henslow dismissed the ideas, but liberal clergymen interpreted natural selection as an instrument of God's design, with the cleric Charles Kingsley seeing it as "just as noble a conception of Deity". In 1860, the publication of ''Essays and Reviews'' by seven liberal Anglican theologians diverted clerical attention from Darwin, with its ideas including higher criticism attacked by church authorities as heresy. In it, Baden Powell argued that miracles broke God's laws, so belief in them was atheistic, and praised "Mr Darwin's masterly volume [supporting] the grand principle of the self-evolving powers of nature". Asa Gray discussed teleology with Darwin, who imported and distributed Gray's pamphlet on theistic evolution, ''Natural Selection is not inconsistent with Natural Theology''. The most famous confrontation was at the public 1860 Oxford evolution debate during a meeting of the British Association for the Advancement of Science, where the Bishop of Oxford Samuel Wilberforce, though not opposed to transmutation of species, argued against Darwin's explanation and human descent from apes. Joseph Hooker argued strongly for Darwin, and Thomas Huxley's legendary retort, that he would rather be descended from an ape than a man who misused his gifts, came to symbolise a triumph of science over religion.

Even Darwin's close friends Gray, Hooker, Huxley and Lyell still expressed various reservations but gave strong support, as did many others, particularly younger naturalists. Gray and Lyell sought reconciliation with faith, while Huxley portrayed a polarisation between religion and science. He campaigned pugnaciously against the authority of the clergy in education, aiming to overturn the dominance of clergymen and aristocratic amateurs under Owen in favour of a new generation of professional scientists. Owen's claim that brain anatomy proved humans to be a separate biological order from apes was shown to be false by Huxley in a long running dispute parodied by Kingsley as the "Great Hippocampus Question", and discredited Owen.

Darwinism became a movement covering a wide range of evolutionary ideas. In 1863 Lyell's ''Geological Evidences of the Antiquity of Man'' popularised prehistory, though his caution on evolution disappointed Darwin. Weeks later Huxley's ''Evidence as to Man's Place in Nature'' showed that anatomically, humans are apes, then ''The Naturalist on the River Amazons'' by Henry Walter Bates provided empirical evidence of natural selection. Lobbying brought Darwin Britain's highest scientific honour, the Royal Society's Copley Medal, awarded on 3 November 1864. That day, Huxley held the first meeting of what became the influential ''X Club'' devoted to "science, pure and free, untrammelled by religious dogmas". By the end of the decade most scientists agreed that evolution occurred, but only a minority supported Darwin's view that the chief mechanism was natural selection.

The ''Origin of Species'' was translated into many languages, becoming a staple scientific text attracting thoughtful attention from all walks of life, including the "working men" who flocked to Huxley's lectures. Darwin's theory also resonated with various movements at the time and became a key fixture of popular culture. Cartoonists parodied animal ancestry in an old tradition of showing humans with animal traits, and in Britain these droll images served to popularise Darwin's theory in an unthreatening way. While ill in 1862 Darwin began growing a beard, and when he reappeared in public in 1866 caricatures of him as an ape helped to identify all forms of evolutionism with Darwinism.

''Descent of Man'', sexual selection, and botany

:''More detailed articles cover Darwin's life from Orchids to Variation, from Descent of Man to Emotions and from Insectivorous Plants to Worms''

Despite repeated bouts of illness during the last twenty-two years of his life, Darwin's work continued. Having published ''On the Origin of Species'' as an abstract of his theory, he pressed on with experiments, research, and writing of his "big book". He covered human descent from earlier animals including evolution of society and of mental abilities, as well as explaining decorative beauty in wildlife and diversifying into innovative plant studies.

Enquiries about insect pollination led in 1861 to novel studies of wild orchids, showing adaptation of their flowers to attract specific moths to each species and ensure cross fertilisation. In 1862 ''Fertilisation of Orchids'' gave his first detailed demonstration of the power of natural selection to explain complex ecological relationships, making testable predictions. As his health declined, he lay on his sickbed in a room filled with inventive experiments to trace the movements of climbing plants. Admiring visitors included Ernst Haeckel, a zealous proponent of ''Darwinismus'' incorporating Lamarckism and Goethe's idealism. Wallace remained supportive, though he increasingly turned to Spiritualism.

''The Variation of Animals and Plants under Domestication'' of 1868 was the first part of Darwin's planned "big book", and included his unsuccessful hypothesis of pangenesis attempting to explain heredity. It sold briskly at first, despite its size, and was translated into many languages. He wrote most of a second part, on natural selection, but it remained unpublished in his lifetime.

Lyell had already popularised human prehistory, and Huxley had shown that anatomically humans are apes. With ''The Descent of Man, and Selection in Relation to Sex'' published in 1871, Darwin set out evidence from numerous sources that humans are animals, showing continuity of physical and mental attributes, and presented sexual selection to explain impractical animal features such as the peacock's plumage as well as human evolution of culture, differences between sexes, and physical and cultural racial characteristics, while emphasising that humans are all one species. His research using images was expanded in his 1872 book ''The Expression of the Emotions in Man and Animals'', one of the first books to feature printed photographs, which discussed the evolution of human psychology and its continuity with the behaviour of animals. Both books proved very popular, and Darwin was impressed by the general assent with which his views had been received, remarking that "everybody is talking about it without being shocked." His conclusion was "that man with all his noble qualities, with sympathy which feels for the most debased, with benevolence which extends not only to other men but to the humblest living creature, with his god-like intellect which has penetrated into the movements and constitution of the solar system–with all these exalted powers–Man still bears in his bodily frame the indelible stamp of his lowly origin."

His evolution-related experiments and investigations led to books on ''Insectivorous Plants, The Effects of Cross and Self Fertilisation in the Vegetable Kingdom'', different forms of flowers on plants of the same species, and ''The Power of Movement in Plants''. In his last book he returned to ''The Formation of Vegetable Mould through the Action of Worms''.

Death and legacy

He died at Down House on 19 April 1882. He had expected to be buried in St Mary's churchyard at Downe, but at the request of Darwin's colleagues, after public and parliamentary petitioning, William Spottiswoode (President of the Royal Society) arranged for Darwin to be honoured by a major ceremonial funeral and burial in Westminster Abbey, close to John Herschel and Isaac Newton.

Darwin had convinced most scientists that evolution as descent with modification was correct, and he was regarded as a great scientist who had revolutionised ideas. Though few agreed with his view that "natural selection has been the main but not the exclusive means of modification", he was honoured in June 1909 by more than 400 officials and scientists from across the world who met in Cambridge to commemorate his centenary and the fiftieth anniversary of ''On the Origin of Species''. During this period, which has been called "the eclipse of Darwinism", scientists proposed various alternative evolutionary mechanisms which eventually proved untenable. The development of the modern evolutionary synthesis from the 1930s to the 1950s, incorporating natural selection with population genetics and Mendelian genetics, brought broad scientific consensus that natural selection was the basic mechanism of evolution. This synthesis set the frame of reference for modern debates and refinements of the theory.

Children

The Darwins had ten children: two died in infancy, and Annie's death at the age of ten had a devastating effect on her parents. Charles was a devoted father and uncommonly attentive to his children. Whenever they fell ill, he feared that they might have inherited weaknesses from inbreeding due to the close family ties he shared with his wife and cousin, Emma Wedgwood. He examined this topic in his writings, contrasting it with the advantages of crossing amongst many organisms. Despite his fears, most of the surviving children and many of their descendants went on to have distinguished careers (see Darwin-Wedgwood family).

Of his surviving children, George, Francis and Horace became Fellows of the Royal Society, distinguished as astronomer, botanist and civil engineer, respectively. His son Leonard went on to be a soldier, politician, economist, eugenicist and mentor of the statistician and evolutionary biologist Ronald Fisher.

Religious views

Darwin's family tradition was nonconformist Unitarianism, while his father and grandfather were freethinkers, and his baptism and boarding school were Church of England. When going to Cambridge to become an Anglican clergyman, he did not doubt the literal truth of the Bible. He learned John Herschel's science which, like William Paley's natural theology, sought explanations in laws of nature rather than miracles and saw adaptation of species as evidence of design. On board the ''Beagle'', Darwin was quite orthodox and would quote the Bible as an authority on morality. He looked for "centres of creation" to explain distribution, and related the antlion found near kangaroos to distinct "periods of Creation".

By his return he was critical of the Bible as history, and wondered why all religions should not be equally valid. In the next few years, while intensively speculating on geology and transmutation of species, he gave much thought to religion and openly discussed this with Emma, whose beliefs also came from intensive study and questioning. The theodicy of Paley and Thomas Malthus vindicated evils such as starvation as a result of a benevolent creator's laws which had an overall good effect. To Darwin, natural selection produced the good of adaptation but removed the need for design, and he could not see the work of an omnipotent deity in all the pain and suffering such as the ichneumon wasp paralysing caterpillars as live food for its eggs. He still viewed organisms as perfectly adapted, and ''On the Origin of Species'' reflects theological views. Though he thought of religion as a tribal survival strategy, Darwin still believed that God was the ultimate lawgiver.

Darwin remained close friends with the vicar of Downe, John Innes, and continued to play a leading part in the parish work of the church, but from around 1849 would go for a walk on Sundays while his family attended church. He considered it "absurd to doubt that a man might be an ardent theist and an evolutionist" and, though reticent about his religious views, in 1879 he wrote that "I have never been an atheist in the sense of denying the existence of a God. – I think that generally ... an agnostic would be the most correct description of my state of mind."

The "Lady Hope Story", published in 1915, claimed that Darwin had reverted back to Christianity on his sickbed. The claims were repudiated by Darwin's children and have been dismissed as false by historians. His last words were to his family, telling Emma "I am not the least afraid of death – Remember what a good wife you have been to me – Tell all my children to remember how good they have been to me", then while she rested, he repeatedly told Henrietta and Francis "It's almost worth while to be sick to be nursed by you".

Social interpretations

Darwin's fame and popularity led to his name being associated with ideas and movements which at times had only an indirect relation to his writings, and sometimes went directly against his express comments.

Eugenics

Darwin was intrigued by his half-cousin Francis Galton's argument, introduced in 1865, that statistical analysis of heredity showed that moral and mental human traits could be inherited, and principles of animal breeding could apply to humans. In ''The Descent of Man'' Darwin noted that aiding the weak to survive and have families could lose the benefits of natural selection, but cautioned that withholding such aid would endanger the instinct of sympathy, "the noblest part of our nature", and factors such as education could be more important. When Galton suggested that publishing research could encourage intermarriage within a "caste" of "those who are naturally gifted", Darwin foresaw practical difficulties, and thought it "the sole feasible, yet I fear utopian, plan of procedure in improving the human race", preferring to simply publicise the importance of inheritance and leave decisions to individuals.

Galton named the field of study "eugenics" in 1883. In contrast to Darwin's cautious thoughts on voluntary improvement, negative eugenics later developed on a basis of Mendelian genetics and led to compulsory sterilisation laws which brought the field into disrepute.

Social Darwinism

Taking descriptive ideas as moral and social justification creates the ethical is-ought problem. When Thomas Malthus argued that population growth beyond resources was ordained by God to get humans to work productively and show restraint in getting families, this was used in the 1830s to justify workhouses and laissez-faire economics. Evolution was seen as having social implications, and Herbert Spencer's 1851 book ''Social Statics'' based ideas of human freedom and individual liberties on his Lamarckian evolutionary theory.

Darwin's theory of evolution was a matter of explanation. He thought it "absurd to talk of one animal being higher than another" and saw evolution as having no goal, but soon after the ''Origin'' was published in 1859, critics derided his description of a struggle for existence as a Malthusian justification for the English industrial capitalism of the time. The term ''Darwinism'' was used for the evolutionary ideas of others, including Spencer's "survival of the fittest" as free-market progress, and Ernst Haeckel's racist ideas of human development. Darwin did not share the racism common at that time: a point examined by the philosopher Antony Flew, who is at pains to distance Darwin's attitudes from those later attributed to him. Darwin was strongly against slavery, against "ranking the so-called races of man as distinct species", and against ill-treatment of native people.

Darwin's views on social and political issues reflected his time and social position. He thought men's eminence over women was the outcome of sexual selection, a view disputed by Antoinette Brown Blackwell in ''The Sexes Throughout Nature''. He valued European civilisation and saw colonisation as spreading its benefits, with the sad but inevitable effect of extermination of savage peoples who did not become civilised. Darwin's theories presented this as natural, and were cited to promote policies which went against his humanitarian principles. Writers used natural selection to argue for various, often contradictory, ideologies such as laissez-faire dog-eat dog capitalism, racism, warfare, colonialism and imperialism. However, Darwin's holistic view of nature included "dependence of one being on another"; thus pacifists, socialists, liberal social reformers and anarchists such as Peter Kropotkin stressed the value of co-operation over struggle within a species. Darwin himself insisted that social policy should not simply be guided by concepts of struggle and selection in nature.

The term "Social Darwinism" was used infrequently from around the 1890s, but became popular as a derogatory term in the 1940s when used by Richard Hofstadter to attack the laissez-faire conservatism of those like William Graham Sumner who opposed reform and socialism. Since then it has been used as a term of abuse by those opposed to what they think are the moral consequences of evolution.

Commemoration

During Darwin's lifetime, many geographical features were given his name. An expanse of water adjoining the Beagle Channel was named ''Darwin Sound'' by Robert FitzRoy after Darwin's prompt action, along with two or three of the men, saved them from being marooned on a nearby shore when a collapsing glacier caused a large wave that would have swept away their boats, and the nearby Mount Darwin in the Andes was named in celebration of Darwin's 25th birthday. When the ''Beagle'' was surveying Australia in 1839, Darwin's friend John Lort Stokes sighted a natural harbour which the ship's captain Wickham named ''Port Darwin'': a nearby settlement was renamed Darwin in 1911, and it became the capital city of Australia's Northern Territory.

More than 120 species and nine genera have been named after Darwin. In one example, the group of tanagers related to those Darwin found in the Galápagos Islands became popularly known as "Darwin's finches" in 1947, fostering inaccurate legends about their significance to his work.

Darwin's work has continued to be celebrated by numerous publications and events. The Linnean Society of London has commemorated Darwin's achievements by the award of the Darwin–Wallace Medal since 1908. Darwin Day has become an annual celebration, and in 2009 worldwide events were arranged for the bicentenary of Darwin's birth and the 150th anniversary of the publication of ''On the Origin of Species''.

Darwin has been commemorated in the UK, with his portrait printed on the reverse of £10 banknotes printed along with a hummingbird and the HMS ''Beagle'', issued by the Bank of England.

Works

Darwin was a prolific writer. Even without publication of his works on evolution, he would have had a considerable reputation as the author of ''The Voyage of the Beagle'', as a geologist who had published extensively on South America and had solved the puzzle of the formation of coral atolls, and as a biologist who had published the definitive work on barnacles. While ''The Origin of Species'' dominates perceptions of his work, ''The Descent of Man'' and ''The Expression of the Emotions in Man and Animals'' had considerable impact, and his books on plants including ''The Power of Movement in Plants'' were innovative studies of great importance, as was his final work on ''The Formation of Vegetable Mould through the Action of Worms''.

See also

Creation-evolution controversy

"Darwin among the Machines"

Darwin's Frog

European and American voyages of scientific exploration

Harriet (tortoise)

List of coupled cousins

List of mulitiple discoveries

Patrick Matthew

History of evolutionary thought

History of biology

Portraits of Charles Darwin

Parson-naturalist

Tinamou egg

Universal Darwinism

Notes

I. Darwin was eminent as a naturalist, geologist, biologist, and author; after working as a physician's assistant and two years as a medical student was educated as a clergyman; and was trained in taxidermy.

II. Robert FitzRoy was to become known after the voyage for biblical literalism, but at this time he had considerable interest in Lyell's ideas, and they met before the voyage when Lyell asked for observations to be made in South America. FitzRoy's diary during the ascent of the River Santa Cruz in Patagonia recorded his opinion that the plains were raised beaches, but on return, newly married to a very religious lady, he recanted these ideas.

III. See, for example, WILLA volume 4, ''Charlotte Perkins Gilman and the Feminization of Education'' by Deborah M. De Simone: "Gilman shared many basic educational ideas with the generation of thinkers who matured during the period of "intellectual chaos" caused by Darwin's Origin of the Species. Marked by the belief that individuals can direct human and social evolution, many progressives came to view education as the panacea for advancing social progress and for solving such problems as urbanisation, poverty, or immigration."

IV. See, for example, the song "A lady fair of lineage high" from Gilbert and Sullivan's ''Princess Ida'', which describes the descent of man (but not woman!) from apes.

V. Geneticists studied human heredity as Mendelian inheritance, while eugenics movements sought to manage society, with a focus on social class in the United Kingdom, and on disability and ethnicity in the United States, leading to geneticists seeing this as impractical pseudoscience. A shift from voluntary arrangements to "negative" eugenics included compulsory sterilisation laws in the United States, copied by Nazi Germany as the basis for Nazi eugenics based on virulent racism and "racial hygiene".()

VI. Darwin did not share the then common view that other races are inferior, and said of his taxidermy tutor John Edmonstone, a freed black slave, "I used often to sit with him, for he was a very pleasant and intelligent man".

Early in the ''Beagle'' voyage he nearly lost his position on the ship when he criticised FitzRoy's defence and praise of slavery. He wrote home about "how steadily the general feeling, as shown at elections, has been rising against Slavery. What a proud thing for England if she is the first European nation which utterly abolishes it! I was told before leaving England that after living in slave countries all my opinions would be altered; the only alteration I am aware of is forming a much higher estimate of the negro character." Regarding Fuegians, he "could not have believed how wide was the difference between savage and civilized man: it is greater than between a wild and domesticated animal, inasmuch as in man there is a greater power of improvement", but he knew and liked civilised Fuegians like Jemmy Button: "It seems yet wonderful to me, when I think over all his many good qualities, that he should have been of the same race, and doubtless partaken of the same character, with the miserable, degraded savages whom we first met here."

In the ''Descent of Man'' he mentioned the Fuegians and Edmonstone when arguing against "ranking the so-called races of man as distinct species".

He rejected the ill-treatment of native people, and for example wrote of massacres of Patagonian men, women, and children, "Every one here is fully convinced that this is the most just war, because it is against barbarians. Who would believe in this age that such atrocities could be committed in a Christian civilized country?"

Citations

References

External links

The Complete Works of Charles Darwin Online – Darwin Online; Darwin's publications, private papers and bibliography, supplementary works including biographies, obituaries and reviews

; public domain

Darwin Correspondence Project Full text and notes for complete correspondence to 1867, with summaries of all the rest

Works by Charles Darwin in audio format from LibriVox

Video and radio clips Canadian Broadcasting Corporation

Darwin 200: Celebrating Charles Darwin's bicentenary, Natural History Museum

A Pictorial Biography of Charles Darwin

Mis-portrayal of Darwin as a Racist

Darwin's Volcano – a short video discussing Darwin and Agassiz' coral reef formation debate

'' The life and times of Charles Darwin'', an audio slideshow, The Guardian, Thursday 12 February 2009, (3 min 20 sec).

Darwin's Brave New World – A 3 part drama-documentary exploring Charles Darwin and the significant contributions of his colleagues Joseph Hooker, Thomas Huxley and Alfred Russel Wallace also featuring interviews with Richard Dawkins, David Suzuki, Jared Diamond

A naturalist's voyage around the world Account of the ''Beagle'' voyage using animation, in English from Centre national de la recherche scientifique

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Coordinates	28°36′36″N77°13′48″N
name	Bill Maher
birth name	William Maher, Jr.
birth date	January 20, 1956
birth place	New York, New York, U.S.
alma mater	Cornell University
medium	Stand-Up, Television, Film, Books
nationality	American
active	1979–present
genre	Satire, Political satire, News Satire, Observational comedy
subject	American politics, current events, American culture, pop culture, freedom of speech, environmentalism, religion, human sexuality, recreational drug use, libertarianism, American liberalism, American conservatism
influences	Steve Allen, George Carlin, Johnny Carson, David Frost, Robert Klein, Don Rickles, Gore Vidal, Lenny Bruce
notable work	Elliot on Charlie HooverHost of Politically Incorrect Host of Real Time with Bill Maher''Religulous''
website	BillMaher.com
footnotes	}}

William "Bill" Maher, Jr. (; born January 20, 1956) is an American stand-up comedian, television host, political commentator, author and actor. Before his current role as the host of HBO's ''Real Time with Bill Maher'', Maher hosted a similar late-night talk show called ''Politically Incorrect'' originally on Comedy Central and later on ABC.

Maher is known for his political satire and sociopolitical commentary, which targets a wide swath of topics including: religion, politics, bureaucracies of many kinds, political correctness, the mass media, greed among people and persons in positions of high political and social power, and the lack of intellectual curiosity of the electorate. He supports the legalization of marijuana and same-sex marriage, and serves on the board of PETA. He is also a critic of religion and is an advisory board member of Project Reason, a foundation to promote scientific knowledge and secular values within society. In 2005, Maher ranked at number 38 on Comedy Central's 100 greatest stand-up comedians of all time. Bill Maher received a Hollywood Walk of Fame star on September 14, 2010.

Early life and education

Maher was born in New York City, the son of Julie (née Berman), a nurse, and William Maher, Sr., a network news editor and radio announcer. He was raised in his Irish American father's Catholic religion, remaining unaware that his mother was Jewish until his early teenage years. Maher's family stopped attending church services when Maher was thirteen, due to his father's disagreement with the Catholic Church's position on birth control.

Maher was raised in River Vale, New Jersey, and graduated from Pascack Hills High School in Montvale in 1974. He received a B.A. in English and history from Cornell University in 1978.

Early career

Maher began his career as a stand-up comedian and actor. He was host of the New York City comedy club Catch a Rising Star in 1979. Thanks to Steve Allen, he began appearing on Johnny Carson's and David Letterman's shows in 1982. He made limited television appearances including a recurring role in ''Sara'' (1985), appeared in ''Max Headroom'' (1987), two separate appearances on ''Murder, She Wrote'' (1989, 1990), a recurring role in ''Charlie Hoover'' (1991) and other productions. He has also appeared in several films, usually in a comic role. His feature film debut was in ''D.C. Cab'' (1983), and he also appeared in ''Ratboy'' (1986) ''Cannibal Women in the Avocado Jungle of Death'' (1988) and ''Pizza Man'' (1991), among others.

Television career

''Politically Incorrect with Bill Maher''

Maher assumed the host role ''Politically Incorrect with Bill Maher'', a late-night political talk show that ran on Comedy Central from 1993 to 1997 and on ABC from 1997 to 2002. The show regularly began with a topical monologue by Maher preceding the introduction of four guests, usually a diverse group of individuals from show business, popular culture, political pundits, political consultants, authors, and occasionally news figures. The group would discuss topical issues selected by Maher, who also participated in the discussions. Jerry Seinfeld, a regular guest on the show, stated that ''Politically Incorrect'' reminded him of talk shows from the 1950s and 60s "when guests interacted with each other as much as with the host."

''Politically Incorrect'' won an array of awards, including an Emmy Award for Outstanding Technical Direction, two CableACE awards for Best Talk Show Series, and a Genesis Award for Best Television Talk Show. Maher earned numerous award nominations for his producing, writing and hosting of ''Politically Incorrect'', including ten Emmy nominations, two TV Guide nominations, and two Writers Guild nominations. ABC decided against renewing Maher's contract for ''Politically Incorrect'' in 2002, after he made a controversial on-air remark shortly after the September 11 attacks. He agreed with his guest, conservative pundit Dinesh D'Souza, that the 9/11 terrorists did not act in a cowardly manner (in rebuttal to President Bush's statement calling 9/11 hijackers cowards). Maher said, "We have been the cowards. Lobbing cruise missiles from two thousand miles away. That's cowardly. Staying in the airplane when it hits the building. Say what you want about it. Not cowardly. You're right." Maher later clarified that his comment was not anti-military in any way whatsoever, referencing his well-documented longstanding support for the American military.

In the context of the attacks, some corporate advertisers found the comment too insensitive and controversial. Several companies, including FedEx and Sears Roebuck, pulled their advertisements from the show, costing the show more than it returned.

The show was cancelled on June 16, 2002, and the Sinclair Broadcast Group had dropped the show from its ABC-affiliated stations months prior. On June 22, 2002, just six days after the cancellation of ''Politically Incorrect'', Maher received the Los Angeles Press Club president's award (for "championing free speech"). Maher was on the board of judges one year for the PEN/Newman's Own First Amendment Award.

Maher's remarks after 9/11 were not the first time he had sparked controversy on ''Politically Incorrect''. In the same year, Maher was widely criticized for comparing dogs to retarded children. He apologized for his comments.

''Real Time with Bill Maher''

In 2003, Maher became the host, co-producer and co-writer of ''Real Time with Bill Maher'', a weekly hour-long political comedy talk show on the cable television network HBO. During an interview, Maher told Terry Gross (on NPR's ''Fresh Air'') that he much prefers having serious and well-informed guests on his program, as opposed to the random celebrities that fleshed out his roundtable discussions on ''Politically Incorrect''.

As with his previous show, ''Politically Incorrect'', Maher begins ''Real Time'' with a comic opening monologue based upon current events and other topical issues. He proceeds to a one-on-one interview with a guest, either in-studio or via satellite. Following the interview, Maher sits with three panelists, usually consisting of pundits, authors, activists and journalists, for a discussion of the week's events. In the segment "New Rules" at the end of each show, Maher delivers a humorous editorial on popular culture and American politics.

In late May 2005, Alabama Congressman Spencer Bachus sent a letter to Time Warner's board of directors requesting ''Real Time'' be cancelled after remarks Maher made after noting the military had missed its recruiting goals by 42 percent. Bachus said he felt the comments were demeaning to the military and treasonous. Maher stated his highest regard and support for the troops and asked why the congressman criticized him instead of doing something about the recruitment problem.

''Real Time'' has earned widespread praise. It has been nominated for more than ten Primetime Emmy Awards and six Writer's Guild awards. In 2007, Maher and his co-producers were awarded the Television Producer of the Year Award in Variety Television.

In early 2006, ''Real Time'' was released as an audio CD, along with another CD entitled ''Bill Maher's New Rules'' which features clips, segments and teasers from Real Time. Starting with Episode 67 (2-23-06), ''Real Time'' became available in the USA on iTunes as a free weekly audio podcast.

Maher holds the record for the most Emmy nominations without a win, having been nominated on 22 occasions and not winning once. Eleven of the nominations were for ''Politically Incorrect'', while nine were for ''Real Time.'' The other two were nominations for two of his HBO comedy specials: ''Bill Maher: I'm Swiss'' and ''Bill Maher: The Decider.''

HBO announced in July 2011 the show was renewed for a tenth season.

Christine O'Donnell

On September 17, 2010, Maher aired a clip of Delaware Republican Senatorial candidate Christine O'Donnell from the October 29, 1999 episode of his old show ''Politically Incorrect'' on his current show ''Real Time with Bill Maher'', where she discussed that she had "dabbled in witchcraft." This was one of the most notable of numerous controversial statements by O'Donnell that made her the most covered candidate in the 2010 mid-term election cycle.

Political commentator

Maher is a frequent commentator on various cable news networks, namely CNN, MSNBC, and HLN. Maher has regularly appeared on CNN's ''The Situation Room with Wolf Blitzer'' and has also been a frequent guest on MSNBC's ''Hardball with Chris Matthews'', ''The Rachel Maddow Show'' and ''Countdown with Keith Olbermann''. Maher has also appeared as a guest on HLN's ''The Joy Behar Show''.

Maher hosted the January 13, 2006 edition of ''Larry King Live'', on which he was a frequent guest. Maher appeared as a special guest on the June 29, 2010 edition of the show, on which CNN anchor Larry King announced his retirement. Maher co-emceed the final show of ''Larry King Live'' on December 16, 2010 with Ryan Seacrest.

Since May 2005, he has been a contributing blogger at ''The Huffington Post''.

Views and beliefs

Politics

Maher eschews political labels, referring to himself as "practical". In the past, he has described himself as a libertarian and has also referred to himself "as a progressive, as a sane person".

Maher favors a partial privatization of Social Security, ending corporate welfare and federal funding of non-profits, and legalization of gambling, prostitution, and marijuana. Maher is a member of NORML's Advisory Board, an organization which supports regulated legalization of marijuana. He describes himself as an environmentalist, and he has spoken in favor of the Kyoto treaty on global warming on his show ''Real Time''. He often criticizes industry figures involved in environmental pollution.

Maher is a board member of People for the Ethical Treatment of Animals. He has expressed his distaste for the pharmaceutical and health care industries in general, on the grounds that they make their money out of curing people who are made sick by consuming unhealthy food that corporations urge upon the public. He maintains that mass consumption of high-fructose corn syrup is a contributor to the rise in frequency of obesity in the United States. :" If you believe you need to take all the pills the pharmaceutical industry says you do, then you're already on drugs!"

Before the 2004 U.S. presidential election, Maher became candid in his stated opposition to the re-election of George W. Bush and in his support for John Kerry.

Known for protesting against the demonization of the word "liberal", during the campaign Maher criticized Kerry for being ashamed of the word. On his show, the comedian has noted the paradox of people claiming they distrusted "elite" politicians while at the same time wanting elite doctors to treat them and elite lawyers to represent them in court. Maher supports the death penalty, the legality of abortion and euthanasia. Since the 9/11 attacks, he has endorsed the use of racial profiling at airports.

He was originally against the Iraq War, and has summarized his opinion by saying that the United States and the world have had to pay too high a price for the war. He is skeptical of Iraq surviving without civil war.

In the 2008 U.S. presidential election, Maher announced his support for Barack Obama. Although Maher welcomed Obama's electoral victory, he has subjected him to criticism once in office for not acting boldly on health care reform and other progressive issues.

Religion

Maher is highly critical of religion, and views it as not worth the bother. He has referred to himself as an apatheist, instead of an agnostic or atheist, on ''Scarborough Country'' on April 24, 2007, and again in July 2011. He has reiterated this stance in subsequent interviews, rejecting both the certitude of the existence, as well as the certitude of nonexistence of deities, concluding, "I'm saying that doubt is the only appropriate response for human beings." He is an advisory board member of author Sam Harris's The Reason Project, a foundation that promotes scientific knowledge and secular values within society.

Maher and director Larry Charles teamed up to make the feature film ''Religulous'' (2008), described by trade publication ''Variety'' as a documentary "that spoofs religious extremism across the world." It was released on October 3, 2008.

While Maher is critical towards Christianity, he is an outspoken critic of religion as a whole, including Islam. On October 29, 2010, during a Real Time segment, Maher commented on a news story saying that the name Mohammed had become the most popular baby name in the United Kingdom. He asked, "Am I a racist to feel alarmed by that? Because I am. And it’s not because of the race, it’s because of the religion. I don’t have to apologize, do I, for not wanting the Western world to be taken over by Islam in 300 years? Sharia law is being institutionalized in England? Well, then I am right, I should be alarmed." He later defended his comments on CNN, saying, "And when I say Westerner, I mean someone who believes in the values that Western people believe in that a lot of the Muslim world does not. Like separation of church and state. Like equality of the sexes. Like respect for minorities, free elections, free speech, freedom to gather. These things are not just different from cultures that don’t have them. … It’s better. … I would like to keep those values here."

Maher received the Richard Dawkins Award for 2009 from Atheist Alliance International "for his efforts to further the values science and reason in the world."

Maher was ranked first by MormonVoices, a group associated with Foundation for Apologetic Information & Research, on its Top Ten Anti-Mormon Statements of 2011 list for saying "By any standard, Mormonism is more ridiculous than any other religion".

Health care

Maher has stated that the AMA is a powerful lobbying group and one of the primary reasons why the United States had failed to enact health care reform.

On August 24, 2009, Maher was a guest on ''The Tonight Show with Conan O'Brien'' and on the topic of getting universal health care legislation passed, Maher stated that Obama should forget about trying to get 60 votes for it, "he only needs 51." "Forget getting the sixty votes or sixty percent — sixty percent of people don't believe in evolution in this country — he just needs to drag them to it, like I said, they're stupid; get health care done, with or without them."

Maher has expressed the view that most illness is generally the result of poor diet and lack of exercise, and that medicine is often not the best way of addressing illness. In an episode of his show about the 2008 presidential candidates' health plans, Maher stated that poor nutrition is a primary cause of illness, and that "the answer isn't another pill."

In a discussion with Michael Moore about the film ''Sicko'', Maher asks, "The human body is pretty amazing; it doesn't get sick, usually, for no reason. I mean, there's some genetic stuff that can get to you, but, basically, people are sick in this country because they're poisoned. The environment is a poisoning factor, but also, we gotta say, they poison themselves. They eat shit. People eat shit, and that's, to my way of thinking, about 90 percent of why people are sick, is because they eat shit. Would you agree?"

On October 9, 2009, on his HBO show, Maher debated the effectiveness of flu vaccinations with Bill Frist and stated, "Why would you let them be the ones to stick a disease into your arm? I would never get a swine flu vaccine or any vaccine. I don’t trust the government, especially with my health." Maher also expressed skepticism about the seriousness of the swine flu and whether completely healthy people could die from it. His comments have generated criticism, and his remarks have been called unscientific and even harmful.

Maher responded to the criticism, noting, "What I've read about what they think I'm saying is not what I've said. I'm not a germ theory denier. I believe vaccinations can work. Polio is a good example. Do I think in certain situations that inoculating Third World children against malaria or diphtheria, or whatever, is right? Of course. In a situation like that, the benefits outweigh costs. But to me living in Los Angeles? To get a flu shot? No." (see Vaccine controversy)

Criticism of 9/11 conspiracy theories

Maher has been a critic of 9/11 conspiracy theories. On October 19, 2007, Maher confronted several 9/11 truthers and had them ejected from his show audience after they interrupted the live show numerous times by calling out from the audience. The incident drew significant media attention and praise from Fox News talk show host and frequent critic John Gibson.

Personal life

Maher has never married. In 2003, he began dating former Playboy Cyber Girl Coco Johnsen. In November 2004, at the end of their 17-month relationship, she sued him for USD $9 million for "pain and suffering" for alleged "insulting, humiliating and degrading racial comments." Her suit stated that Maher promised to marry her and father her children, support her financially, and purchase a Beverly Hills home. Her suit also alleged that she quit her job as a flight attendant and occasional model to be with him. Maher's lawyers in their response filed on November 23, 2004, in Los Angeles Superior Court said Maher is a "confirmed bachelor, and a very public one at that" who "never promised to marry [Johnsen] or to have children with her."

Maher's filing stated that "When the dating ended, [Johnson] (sic) launched a campaign to embarrass, humiliate, and extort ridiculous sums of money from Bill Maher." Johnsen accused another former boyfriend of rape and kidnapping in 1997, and the charges were later dismissed for lack of evidence. Her lawsuit against Maher was dismissed on May 2, 2005.

Maher enjoys his bachelor status and states that he does not want to get married. On his website, he is quoted as saying, "I'm the last of my guy friends to have never gotten married, and their wives — they don't want them playing with me. I'm like the escaped slave — I bring news of freedom."

In 2005, he began dating Karrine Steffans, best-selling author and former hip hop model. When commentators suggested there was a pattern to his dating because both his girlfriend and former girlfriend were black, Maher said, "People say I'm into black women. Robert De Niro is into black women. I'm just into women who are real, and they happen to be black."

Credits

Bibliography

''True Story : A Novel'', 1994 (ISBN 0-7432-4251-3)

''Does Anybody Have a Problem With That? Politically Incorrect's Greatest Hits'', 1996 (ISBN 0-679-45627-9)

''Does Anybody Have a Problem with That? The Best of Politically Incorrect'', 1997 (ISBN 0-345-41281-8)

''When You Ride Alone You Ride With Bin Laden: What the Government Should Be Telling Us to Help Fight the War on Terrorism'', 2003 (ISBN 1-893224-90-2)

''Keep the Statue of Liberty Closed: The New Rules'', 2004 (ISBN 1-932407-47-2)

''New Rules: Polite Musings from a Timid Observer'', 2005 (ISBN 1-59486-295-8)

''The New New Rules: A Funny Look at How Everybody but Me Has Their Head Up Their Ass'', 2011 (ISBN 0-39915-841-3)

Filmography

Film
! Year	! Title	! Role
1983	''D.C. Cab''	Bob
	''Rags to Riches''	Freddie
''Club Med''	Rick
''Ratboy''	Party Guest
1987	''House II: The Second Story''	John
1988		Maxwell Taylor
1989	''Cannibal Women in the Avocado Jungle of Death''	Jim
1991	''Pizza Man''	Elmo Bunn
1996	''Don't Quit Your Day Job!''	Comic's Table
1997	''Bimbo Movie Bash''	Unknown
1998	''EDtv''	Himself
2001	''Tomcats (film)''	Carlos
2005		Himself
		Himself
''Religulous''	Himself
2009	''New Rules: Best of''	Himself
2010	''Sex, Drugs & Religion (2010)''	Himself
HBO Specials
! Year	! Title	! Role
1989	''One Night Stand''	Himself
1992	''One Night Stand''	Himself
1995	''Stuff that Struck Me Funny''	Himself
1997	''The Golden Goose Special''	Himself
2000		Himself
2003	''Victory Begins at Home''	Himself
2005	''I'm Swiss''	Himself
2007		Himself
2010		Himself
Television
! Year	! Title	! Role
1985		Marty Lang
		Unknown
	Haskel
1989–90	''Murder, She Wrote''	(2 episodes)
1990	''The Midnight Hour''	Host
1991	''Charlie Hoover''	Elliot
1992	''Say What?''	Host
	''Married... with Children''	Adam Gold
''Roseanne''	Photographer
1997	''Dharma & Greg''	Himself
1993–2002	''Politically Incorrect''	Host
2002	''Just for Laughs''	Himself
2003–present	''Real Time with Bill Maher''	Host
2008	''True Blood''	Himself
2010		Himself
2010	''Family Guy''	Himself

References

External links

in 2004

HBO's "Real Time with Bill Maher" site

2006 Maher Interview with ''The A.V. Club''

2009 Maher Interview with writers at the ''Religulous'' DVD release

Category:1956 births Category:Writers from New York Category:Actors from New Jersey Category:Writers from New Jersey Category:American people of Jewish descent Category:American agnostics Category:American cannabis activists Category:American film actors Category:American libertarians Category:American satirists Category:American stand-up comedians Category:American television actors Category:American television talk show hosts Category:Cornell University alumni Category:American comedians of Irish descent Category:American writers of Irish descent Category:Living people Category:People from Beverly Hills, California Category:People from River Vale, New Jersey Category:Religious skeptics Category:Former Roman Catholics Category:Actors from New York City Category:Drug policy reform activists Category:Animal rights advocates

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Coordinates	28°36′36″N77°13′48″N
name	Eddie Izzard
birth name	Edward John Izzard
birth date	February 07, 1962
birth place	Colony of Aden, Aden Protectorate (now Aden, Yemen)
medium	Stand-up, Television, Film, Stage
nationality	British
active	1987–present
genre	Improvisational comedy,Observational comedy
subject	World history, Celebrities, Religion, Language, Sex
influences	Monty Python, Billy Connolly, Lenny Bruce, Steve Martin, Richard Pryor, Spike Milligan
influenced	Harry Hill, Dara Ó Briain, Demetri Martin, Hal Sparks
notable work	''Live at the Ambassadors'' ''Definite Article'' ''Dress to Kill'' ''Glorious'' ''Circle'' ''Lenny Bruce'' in ''Lenny'' ''Wayne Malloy/Doug Rich'' in ''The Riches'' ''Roman Nagel'' in ''Ocean's Thirteen'' ''Erich Fellgiebel'' in ''Valkyrie'' ''Mr. Kite'' in ''Across the Universe''
website	eddieizzard.com

}}

Edward John "Eddie" Izzard (born 7 February 1962) is an English stand-up comedian and actor. His comedy style takes the form of rambling, whimsical monologue and self-referential pantomime.

Izzard's works include stand-up sets ''Unrepeatable'', ''Definite Article'', ''Glorious'', ''Dress to Kill'', ''Circle'', ''Sexie'' and ''Stripped''. He had a starring role in the television series ''The Riches'' as Wayne Malloy and has appeared in many motion pictures such as ''Ocean's Twelve'', ''Ocean's Thirteen'', ''Mystery Men'', ''The Cat's Meow'', ''Across the Universe'', The Chronicles of Narnia: Prince Caspian, and ''Valkyrie''.

He has cited his main comedy role model as Monty Python, and John Cleese once referred to him as the "Lost Python". In 2009, he completed 43 marathons in 51 days for Sport Relief in spite of having no prior history of long distance running.

He is also known for his transvestism.

Early life

Izzard was born in Aden, Yemen, then the Colony of Aden in the Aden Protectorate. He was the younger son of British parents Dorothy Ella, a midwife and nurse, and Harold John Izzard, an accountant who was working in Aden with British Petroleum. A year after his birth, the family moved to Bangor in Northern Ireland and lived there until he was five. The family then moved to Skewen in South Wales where his mother died of cancer when Izzard was six and his brother Mark was eight. Following his mother's death, Izzard attended boarding schools: St John's School in Porthcawl, St. Bede's Preparatory School, and Eastbourne College.

Career

Early career

Izzard began to toy with comedy at the University of Sheffield with partner and student friend Rob Ballard. After leaving his accountancy degree course, he and Ballard took their act to the streets, often in Covent Garden. After his split with Ballard, Izzard spent a great deal of the early 1980s working as a street performer in Europe and the United States. He then moved his act into the stand-up comedy venues of Britain. His first gig was at the Banana Cabaret in Balham, London. In 1987, he made his first stage appearance at The Comedy Store, London. In 1989, he met actress Sarah Townsend who was running a Fringe venue at the Edinburgh Festival. He refined his material throughout the 1980s, and in the early 1990s he finally began earning some measure of recognition through his improvisation, in part at his own club "Raging Bull" in Soho.

Success as a comedian

In 1991, Izzard got a spot on the Fry and Laurie produced AIDS benefit ''Hysteria 3,'' where he did his "Wolves" sketch, which broke him into the mainstream comedy circuit and television. His resultant stand-up work brought him British Comedy Awards in 1993 (for ''Live at the Ambassadors''), a part in "Filth" which was a stand up presentation by left-wing sympathetic comedians in aid of raising money for the Terence Higgins Trust in 1994, and 1996 (for ''Definite Article'').

In 1996, he got a part in his first United States-produced film, ''The Secret Agent,'' where he met and befriended Robin Williams. Williams already knew of Izzard's act, and discussed bringing his act to the United States. As a result, Izzard took ''Definite Article'' on a successful stint in New York City in the same year, and as a support act to Williams took ''Dress to Kill'' to San Francisco in 1998. His U.S. breakthrough came in 1999, when ''Dress to Kill'' was shown on the American television channel HBO, about a year or so after he performed the show on tour in the USA, UK and France. Suddenly, America was aware of Izzard, and the show went on to earn him two Emmy Awards in 2000 (for performance and writing).

In 1999, after complaints that his act recycled jokes appearing on his DVDs, the BBC's consumer programme ''Watchdog'' investigated Izzard's live act. Izzard explained that like most comedy performers, he used some of his most successful routines in each show. Nonetheless, Izzard was issued a warning by the Department of Trade and Industry. Since then, Izzard has rarely performed his stand-up act on television, saying that it uses up material at too high a rate, whereas stage material can be continually re-used in front of different audiences for several months.

In 2005, Izzard used his rambling style to provide the voice-over for the British government's television advertisements promoting recycling. The tagline of the ads was "Recycle. The possibilities are endless!" Izzard also performed on stage with Scottish musician Midge Ure at Live8 in Edinburgh, Scotland. He played the piano on the song "Vienna".

In January 2006, the U.S. television network FX announced the production of a new drama series called ''The Riches'' (formerly ''Low Life''). Izzard and British actress Minnie Driver star as a married couple, Wayne and Dahlia Malloy, who have been part of a caravan of con-artist Irish travellers swindling their way across the U.S. with their children. After finding another family killed in a car accident, the Malloys assume their identities and start a new life as law-abiding suburbanites in Baton Rouge, Louisiana. The youngest son has shown a preference for wearing girls' clothing, leading to some speculation that the role was based upon Izzard's experiences. Izzard has stated in several interviews that the character of Sam had been given transvestite tendencies long before he was cast as Wayne Malloy, but he has contributed his perspective to keep the character believable.

Theatrical, TV and film appearances

In 1994, Izzard made his West End drama debut as the lead in the world premiere of David Mamet's ''The Cryptogram'' with Lindsay Duncan, in the production at London's Comedy Theatre. The success of that role led to his second starring role in David Beaird's black comedy ''900 Oneonta''. In 1995, he portrayed the title character in Christopher Marlowe's ''Edward II''.

In 1998 Izzard appeared briefly on stage with the Monty Python team in ''The American Film Institute's Tribute to Monty Python'' (also referred to as ''Monty Python Live at Aspen''). He walked on stage with the five surviving Pythons and he was summarily escorted off by Eric Idle and Michael Palin as he attempted to participate in a discussion about how the group got together.

Izzard portrayed comedian Lenny Bruce in the 1999 production of Julian Barry's 1971 play ''Lenny''. In 2001, he replaced Clive Owen in Peter Nichols' 1967 play ''A Day in the Death of Joe Egg'' at the Comedy Theatre. Izzard and Victoria Hamilton then repeated their lead roles when the show was brought to Broadway in 2003, with The Roundabout Theatre Company production. The revival received four Tony Award nominations including Best Revival of a Play, Best Leading Actor and Actress for its stars Izzard and Hamilton in their Broadway debuts, and Best Direction for Laurence Boswell. In June 2010, Izzard replaced James Spader in the role of Jack Lawson in David Mamet's play ''Race'' on Broadway.

Izzard has appeared in numerous films, starting with 1996's ''The Secret Agent''. He has appeared as several real-life individuals, including Charlie Chaplin in ''The Cat's Meow'', actor Gustav von Wangenheim in ''Shadow of the Vampire'' and General Erich Fellgiebel in ''Valkyrie''. Other roles have included Mr. Kite in ''Across the Universe'', Lussurioso in ''Revengers Tragedy'' and criminal expert Roman Nagel in ''Ocean's Twelve'' and ''Ocean's Thirteen''. Voice work has included the titular It in ''Five Children and It'', Nigel in ''The Wild'' and the mouse warrior Reepicheep in ''The Chronicles of Narnia: Prince Caspian.'' He said in 2009 that he would not be reprising his role as Reepicheep and the role was ultimately played by Simon Pegg in ''The Chronicles of Narnia: The Voyage of the Dawn Treader''.

Izzard appeared in the BBC science fiction miniseries ''The Day of the Triffids'' based on the 1951 novel, alongside Jason Priestley, Vanessa Redgrave, Joely Richardson, Dougray Scott and Brian Cox. He played Dr. Hatteras, a skeptical psychology professor, in the Showtime series ''United States of Tara''.

Comic style

Izzard's style is heavily influenced by Monty Python, especially in his use of a stream-of-consciousness delivery that jumps between topics as he free associates on stage. He does not generally work from a script, owing to his dyslexia. Instead, he interrupts himself with new joke ideas, the characters he portrays turn into other characters, and he nonchalantly leaps from topic to topic. This often results in brief pauses in the routine which he fills with 'so, yeah', and other verbal tics that have become his trademarks. Thinking aloud is also part of Izzard's ongoing attempt to make the process of writing the show itself part of the humour. As he put it in a 2004 interview with ''The Guardian'', "It's the oral tradition. Human beings have been doing it for thousands of years". He frequently notes the reaction to a joke midstream by pretending to write on his hand ("Should be funnier"; "Lost them there"; "They didn't believe me"; "They didn't follow, never do that again", "never link those two[references] together ever again.") He asks the audience questions and verbally engages with hecklers.

Among Izzard's comic talents are mimicry and mime. He portrays God as an authority figure using the voice of James Mason and casts Sean Connery as Noah; these impersonations appear in many of his performances. Izzard also imitates activities such as sawing wood, vacuum cleaning, and mowing the lawn, anthropomorphising the machines with accents and personalities. Successful impressions, such as his Scottish clarinet teacher, Mrs. Badcrumble, become running gags which recur in different shows. He tackles topics both contemporary and historic, including frequent re-imaginings of historical events which result in scenes like 'Cake or Death: Church of England runs the Inquisition', or 'Jesus Ministers to the Dinosaurs'.

When asked about his comedy style by George Stroumboulopoulos, host of CBC Television's talk show, ''The Hour'', Izzard described his use of history by saying,

"I just talk complete bullshit. The history, the politics, I noticed that no one was using history, so there's a lot of history lying about the place, and it's all free, and it's on Wikipedia! You know, I use Wikipedia like a crazy idiot, now. Then I take all this stuff, and I regurgitate it into a weird angle".

In 2008, in his ''Stripped'' tour, Izzard began using Wikipedia itself as part of his stand-up act, reading from a live copy of an article and mocking Wikipedia's self-referential editorial style.

Traditionally, Izzard has focused on the creative possibilities of thinking through absurd situations in real time. He also turns much of the attention on himself and his personality, including his cross-dressing ("It is my manifest destiny to wear a dress on all seven continents"). Contemporary pop culture (Harry Potter, ''Star Wars'', etc.) is also a frequent subject, brought up both to critique its weaknesses and to enhance his anecdotes.

His bent towards the surreal even went so far as to produce a sitcom called Cows in 1997 for Channel 4, a live action comedy with actors dressed in cowsuits.

Transvestism

Izzard started to freely talk about his transvestism in venues like Edinburgh Festival as early as 1992. In his show, ''Dress to Kill'', Izzard describes himself as an "executive", "action" and "professional" transvestite, as "a male tomboy" rather than a drag queen or a "weirdo" transvestite (he cites J. Edgar Hoover and Hermann Göring as examples of the latter). He regularly cross-dresses both on and off stage and makes it clear that cross-dressing is, for him, neither a part of his performance nor a sexual fetish. He remarks in his show ''Unrepeatable'', "Women wear what they want and so do I". According to Izzard, "Most transvestites fancy women". He dismisses claims that he is a male homosexual, saying he is "a straight transvestite or a male lesbian". He has also described himself as "a lesbian trapped in a man's body", transgender, and "a complete boy plus half a girl".

Activism

Izzard has engaged in campaigning work. He is especially well-known as a pro-European Union campaigner supporting the further integration of the UK into the EU. In May 2005 he appeared on the BBC's political debate show ''Question Time'', describing himself as a 'British-European', comparing this with other cultural identities such as 'African-American'. As part of his integration campaigning, he was one of the first people to spend a euro in London. This pan-European approach has influenced his work: he regularly performs in French, in which he is fluent, and occasionally in German, in addition to English. In July 2003, Izzard received an honorary Doctor of Letters from the University of East Anglia in Norwich, England for "pro-Europe campaigning", "his contribution to promoting modern languages and tolerance of other cultures and lifestyles" and for having "transcended national barriers" with his humour.

He has also campaigned unsuccessfully against the closure of the departments of Drama and Languages, Linguistics and Translation at the University of East Anglia, although the department of Drama was later reprieved. In 1998, Izzard was named in a list of the biggest private financial donors to the Labour Party. He appeared in a party political broadcast for the Labour Party in the run up to the 2005 general election. He donated nearly £10,000 to the party in 2008, appeared again in a party political broadcast for the 2009 European election and again in a 2010 election video entitled 'Brilliant Britain'. Izzard appeared in literature to support changing the British electoral system from first-past-the-post to alternative vote for electing Members of Parliament to the House of Commons in the Alternative Vote referendum in 2011.

On 20 July 2006, he received an honorary doctorate in Letters from the Faculty of Arts at the University of Sheffield, where he spent one year on an Accounting and Financial Management course in the early 80s. During his time at the University he established the now-defunct Alternative Productions Society in the Union of Students with the aim of promoting fringe-based arts. On 4 March 2010 he was elected as the Honorary President of the University of Sheffield Union of Students.

On 7 July 2007, Izzard was one of the presenters from the London leg of Live Earth. During an interview for the 2008 Stripped tour, Izzard spoke about becoming more active in European politics as well as running for political office in Europe within the next decade. Izzard added a stop in New Orleans during his 2008 ''Stripped'' tour. All proceeds from the performance of 23 June 2008 were donated to Neighborhood Housing Services of New Orleans.

Marathons

On 27 July 2009, with only 5 weeks' training and no significant prior history of running, Izzard began seven weeks of back-to-back marathon runs (with Sundays off) across the UK to raise money for Sport Relief. He ran from London to Cardiff, to Belfast, to Edinburgh, and back to London carrying flags of England, Scotland or Wales depending on which country he was in, and carried a self-designed green flag bearing a white dove when in Northern Ireland. The blog Eddie Iz Running was a document of his road running marathon, in which he ran 43 marathons in 51 days. He completed the run on 15 September 2009, after having run at least 27 miles each day, 6 days a week for 7 weeks straight, covering more than 1,100 miles across the UK.Izzard received a special award at BBC Sports Personality of the Year 2009 for his achievements.

Izzard ran his final marathon in five hours and 30 seconds, narrowly outside his projected time. However, had he not stopped and waited 20 minutes for his film crew to catch up with him he could have finished well under his target time. In March 2010, Izzard took part in the Sport Relief Mile event.

Following the completion of the marathon runs, Izzard has started training to take part in an Ironman Triathlon, saying he has become fascinated with fitness "because there's no point in throwing away all that training".

Personal life

During his ''Stripped'' tour, Izzard said he realised he was an atheist. "I was warming the material up in New York, where one night, literally on stage, I realised I didn’t believe in God at all. I just didn’t think there was anyone upstairs."

He keeps his romantic life private, saying one of the reasons is due to the wishes of his companions not wanting to become content for his show. Izzard dated Sarah Townsend, the director of the documentary ''Believe: The Eddie Izzard Story'', whom he first met while she was running a Fringe venue at the Edinburgh Festival in 1989.

Izzard speaks French and has performed stand up in French during his shows. He also speaks German and used it in the 2001 film ''All the Queen's Men''.

Critical reception

On 18 March 2007, Izzard was listed as number 3 of the 100 Greatest British National Comedians (just behind Peter Kay at number 2 and Billy Connolly at number 1) as part of British television station Channel 4's ongoing ''100 Greatest...'', series. However in the 2010 updated version of the list he was ranked 5th In a 2005 poll to find ''The Comedian's Comedian'', Izzard was voted amongst the top 20 greatest comedy acts ever by fellow comedians and comedy insiders. He was number 75 in Comedy Central's ''100 Greatest Stand-ups of All Time''.

During the 1999 television special ''It's... the Monty Python Story'', which Izzard hosted, John Cleese said Izzard was the "Lost Python"; Izzard furthered that idea via his substitution for Graham Chapman in public performance of Python material with the rest of the original members of the troupe. He also made a cameo appearance in the Python reunion interview ''Monty Python Live At Aspen''.

In 2008, Izzard received the James Joyce Award of the Literary and Historical Society of UCD, Dublin, Ireland. In March 2010, the Students Union of the University of Sheffield overwhelmingly elected him their honorary President.

Discography and appearances

Stand-up

''Live at the Ambassadors'' (15 November 1993)

''Unrepeatable'' (14 March 1994)

''Definite Article'' (21 October 1996)

''Glorious'' (17 November 1997)

''Dress to Kill'' (9 November 1998)

''Circle'' (18 November 2002)

''Sexie'' (26 November 2003)

''Stripped'' (23 November 2009)

Stage

''900 Oneonta'' (1994)

''The Cryptogram'' (1994)

''Edward II'' (1995)

''Lenny'' (1999)

''A Day in the Death of Joe Egg'' (2001–2002, 2003)

''Trumbo'' (2003)

''Race'' (2010)

Filmography

''The Oncoming Storm'' (1995) as Luthor Keeton

''The Secret Agent'' (1996) as Vladimir

''Velvet Goldmine'' (1998) as Jerry Devine

''The Avengers'' (1998) as Bailey

''Mystery Men'' (1999) as Tony P

''The Criminal'' (1999) as Peter Hume

''Circus'' (2000) as Troy

''Shadow of the Vampire'' (2000) as Gustav von Wangenheim

''The Cat's Meow'' (2001) as Charlie Chaplin

''All the Queen's Men'' (2001) as Tony Parker

''Revengers Tragedy'' (2002) as Lussurioso

''Alien Invasion'' (2003) as Brik

''Blueberry'' aka ''Renegade'' (2004) as Prosit

''Five Children and It'' (2004) as It (voice)

''Romance & Cigarettes'' (2004) as Gene Vincent

''Ocean's Twelve'' (2004) as Roman Nagel

''The Aristocrats'' (2005) as Himself

''The Wild'' (2006) as Nigel (voice)

''My Super Ex-Girlfriend'' (2006) as Professor Bedlam

''Ocean's Thirteen'' (2007) as Roman Nagel

''Across the Universe'' (2007) as Mr. Kite

''The Chronicles of Narnia: Prince Caspian'' (2008) as Reepicheep (voice)

''Igor'' (2008) as Dr. Schadenfreude (voice)

''Valkyrie'' (2008) as Erich Fellgiebel

''Rage'' (2009) as Tiny Diamonds

''Every Day'' (2009) as Garrett

''The Other Side'' (2009) as Dean Bellamy

''Believe: The Eddie Izzard Story'' (2009) as Himself

''Cars 2'' (2011) as Miles Axelrod

''Snow White and the Huntsman'' (2012) as Tiberius

TV appearances

''Barf Bites Back (Amnesty International Gala)'' (1991) – ITV

''Open Fire'' (1994)

''Have I Got News for You'' (1994, 1995 and 1996) – BBC Two

''Aristophanes: The Gods are Laughing'' (1995)

''Whose Line Is It Anyway?'' (1995)

''Tales from the Crypt'' (1996) – HBO

''Clive Anderson Talks Back'' (1996)

''Inspector Derrick'' (1997)

''Channel Izzard'' (1997)

''The Roseanne Show'' (1998)

''Rex the Runt'' (1998) – BBC

''Shooting Stars'' (1998) – BBC

''Parkinson'' (3 times)

''Dennis Miller Live'' (1999) – HBO

''Python Night – 30 Years of Monty Python'' (1999) – BBC

''Good News Week'' (2000) – Network 10

''Mongrel Nation'' (2002) – Discovery Channel

''The Caroline Rhea Show'' (2002)

''The Tonight Show with Jay Leno'' (2002, 2004 and 2007)

''The Tonight Show with Conan O'Brien'' (2009)

''40'' (2003) – Channel 4

''Late Night with Conan O'Brien'' (2003, 2008) NBC

''QI'' (Unaired pilot- 2002 or 2003, and 2010)

''Top Gear'' (2004) – BBC Two

''Last Call with Carson Daly'' (2005)

''The Sharon Osbourne Show'' (2006)

''Late Show with David Letterman'' (6 times)

''Late Late show with Craig Kilborn'' (4 times)

''The Late Late Show with Craig Ferguson'' (2006, 2008, 2009, 2010, 2011)

''The Henry Rollins Show'' (2006)

''The Paul O'Grady Show'' (2009)

''The Secret Policeman's Ball'' (2006)

''Kitchen'' (2007) – five

''Comedy Cuts'' (interview) (2007)

''The Hour'' (2007)

''Friday Night with Jonathan Ross'' (2007 and 2009)

''The Daily Show'' (2000, 2003 and 2007)

''The Riches'' (2007–2008)

''The Secret Policeman's Ball'' (2008)

''The Graham Norton Show'' (2008)

''Late Night with Jimmy Fallon'' (2009)

''Kevin Pollak's Chat Show'' (2009)

''BBC Sports Personality of the Year'' (2009 award winner)

''The Day of the Triffids'' (2009)

''Marathon Man'' (2010)

''The Simpsons'' episode ''To Surveil with Love'' (2010)

''Chelsea Lately'' (2010)

''United States of Tara'' (2011)

''Alan Carr: Chatty Man'' (2011)

Video game

''102 Dalmatians: Puppies to the Rescue'' – Sgt. Tibbs the Cat (voice)

Future projects

Eddie Izzard said in a personal appearance (for his biopic ''Believe'') that he is currently putting together a script for a movie as a conclusion to ''The Riches''. He said the plan is to "pick up exactly where we left off, and we think we're going to make a film of the next bit". As of 24 May 2010 there are no indications that this film will ever be made, leaving ''The Riches'' without a conclusion.

He has announced for future tours that a dollar out of each ticket sale will be appropriated to supplying Africa with contraceptives and other means of sexual protection.

See also

Cross-dressing in film and television

References

External links

Official web site

BBC America – Eddie Izzard

Interview with Izzard – ''The Observer'', 3 October 2004

''It's stupid and I love it – the Goon Show and me'' – ''The Guardian'', 14 February 2005.

Izzard interviewed by Bono – ''The Independent'', 16 May 2006

Venus Zine Staff Picks: Eddie Izzard, Dress to Kill

Eddie Izzard Category:1962 births Category:People from Aden Category:Drama Desk Award winners Category:English atheists Category:English buskers Category:English comedians Category:English film actors Category:English voice actors Category:English television actors Category:English stand-up comedians Category:Cross-dressers Category:Living people Category:Old Eastbournians Category:Emmy Award winners Category:People educated at Oakleigh House School

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