Year 1818 (MDCCCXVIII) was a common year starting on Thursday (link will display the full calendar) of the Gregorian Calendar and a common year starting on Tuesday of the 12-day slower Julian calendar.

Victor Marius Alphonse Petipa (11 March 1818 — 14 July [O.S. 1 July] 1910) was a French ballet dancer, teacher and choreographer. Petipa is considered to be the most influential ballet master and choreographer of ballet that has ever lived.

Marius Petipa is noted for his long career as Premier Maître de Ballet of the St. Petersburg Imperial Theatres, a position he held from 1871 until 1903. Petipa created over fifty ballets, some of which have survived in versions either faithful to, inspired by, or reconstructed from the original — The Pharaoh's Daughter (1862); Don Quixote (1869); La Bayadère (1877); Le Talisman (1889); The Sleeping Beauty (1890); The Nutcracker (which was most likely choreographed by Lev Ivanov, perhaps with Petipa's counsel and instruction) (1892); Le Réveil de Flore (1894); Le Halte de Cavalerie (1896); Raymonda (1898); Les Saisons (1900), and Les Millions d’Arlequin (a.k.a. Harlequinade) (1900).

Petipa revived a substantial number of works created by other Ballet Masters. Many of these revivals would go on to become the definitive editions from which all subsequent productions would be based. The most famous of these revivals are Le Corsaire, Giselle, La Esmeralda, Coppélia, La Fille Mal Gardée (with Lev Ivanov), The Little Humpbacked Horse and Swan Lake (with Lev Ivanov).

Karl Heinrich Marx (5 May 1818 – 14 March 1883) was a German philosopher, economist, sociologist, historian, journalist, and revolutionary socialist. His ideas played a significant role in the development of social science and the socialist political movement. He published various books during his lifetime, with the most notable being The Communist Manifesto (1848) and Capital (1867–1894); some of his works were co-written with his friend and fellow German revolutionary socialist, Friedrich Engels.

Born into a wealthy middle class family in Trier, formerly in Prussian Rhineland now called Rhineland-Palatinate, Marx studied at both the University of Bonn and the University of Berlin, where he became interested in the philosophical ideas of the Young Hegelians. In 1836, he became engaged to Jenny von Westphalen, marrying her in 1843. After his studies, he wrote for a radical newspaper in Cologne, and began to work out his theory of dialectical materialism. Moving to Paris in 1843, he began writing for other radical newspapers. He met Engels in Paris, and the two men worked together on a series of books. Exiled to Brussels, he became a leading figure of the Communist League, before moving back to Cologne, where he founded his own newspaper. In 1849 he was exiled again and moved to London together with his wife and children. In London, where the family was reduced to poverty, Marx continued writing and formulating his theories about the nature of society and how he believed it could be improved, and also campaigned for socialism—he became a significant figure in the International Workingmen's Association.

Franz Peter Schubert (German pronunciation: [ˈfʁants ˈʃuːbɛɐ̯t]; 31 January 1797 – 19 November 1828) was an Austrian composer.

Although he died at the age of 31, Schubert was a prolific composer, having written some 600 Lieder, nine symphonies (including the famous "Unfinished Symphony"), liturgical music, operas, some incidental music, and a large body of chamber and solo piano music. Appreciation of Schubert's music during his lifetime was limited, but interest in his work increased significantly in the decades following his death. Franz Liszt, Robert Schumann, Johannes Brahms and Felix Mendelssohn, among others, discovered and championed his works in the 19th century. Today, Schubert is seen as one of the leading exponents of the early Romantic era in music and he remains one of the most frequently performed composers.

Schubert was born in Himmelpfortgrund (now a part of Alsergrund), Vienna, on 31 January 1797. His father, Franz Theodor Schubert, the son of a Moravian peasant, was a parish schoolmaster; his mother, Elisabeth Vietz, was the daughter of a Silesian master locksmith, and had also been a housemaid for a Viennese family prior to her marriage. Of Franz Theodor's fourteen children (one illegitimate child was born in 1783), nine died in infancy; five survived. Their father was a well-known teacher, and his school in Lichtental, a part of Vienna's 9th district, was well attended. He was not a musician of fame or with formal training, but he taught his son some elements of music.

Washington Allston (November 5, 1779 – July 9, 1843) was an American painter and poet, born in Waccamaw Parish, South Carolina. Allston pioneered America's Romantic movement of landscape painting. He was well known during his lifetime for his experiments with dramatic subject matter and his bold use of light and atmospheric color.

Allston was born on a rice plantation on the Waccamaw River near Georgetown, South Carolina. His mother Rachel Moore had married Captain William Allston in 1775, though her husband died in 1781, shortly after the Battle of Cowpens. Moore remarried to Dr. Henry C. Flagg, the son of a wealthy shipping merchant from Newport, Rhode Island.

Named in honor of the leading American general of the Revolution, Washington Allston graduated from Harvard College in 1800 and moved to Charleston, South Carolina for a short time before sailing to England in May 1801. He was admitted to the Royal Academy in London in September, when painter Benjamin West was then the president.

From 1803 to 1808, he visited the great museums of Paris and then, for several years, those of Italy, where he met Washington Irving in Rome and Coleridge, his lifelong friend. In 1809, Allston married Ann Channing, sister of William Ellery Channing.Samuel F. B. Morse was one of Allston's art pupils and accompanied Allston to Europe in 1811. After traveling throughout western Europe, Allston finally settled in London, where he won fame and prizes for his pictures.