Andes
Aerial photo of a portion of the Andes between Argentina and Chile
Highest point
Peak	Aconcagua (Las Heras Department, Mendoza, Argentina)
Elevation	6,962 m (22,841 ft)
Coordinates	32°39′10″S 70°0′40″W / 32.65278°S 70.01111°W / -32.65278; -70.01111Coordinates: 32°39′10″S 70°0′40″W / 32.65278°S 70.01111°W / -32.65278; -70.01111
Dimensions
Length	7,000 km (4,300 mi)
Width	500 km (310 mi)
Naming
Native name	Quechua: Anti(s/kuna)
Geography
Composite satellite image of the southern Andes
Countries	List Argentina Bolivia Chile Colombia Ecuador Peru Venezuela
Settlements	List Bogotá Santiago Medellín La Paz Cali Quito Pasto Mérida Arequipa Mendoza Cuenca Cochabamba Pereira Ibagué Salta Manizales Cúcuta Huancayo Cusco

The Andes is the longest continental mountain range in the world. It is a continual range of highlands along the western coast of South America. This range is about 7,000 km (4,300 mi) long, about 200 km (120 mi) to 700 km (430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.

Along its length, the Andes is split into several ranges, which are separated by intermediate depressions. The Andes is the location of several high plateaux – some of which host major cities such as Quito, Bogotá, Arequipa, Medellín, Sucre, and La Paz. The so-called Altiplano plateau is the world's second-highest plateau following the Tibetan plateau.

The Andes range is the world's highest mountain range outside of the continent of Asia. The highest peak, Mt. Aconcagua, rises to an elevation of about 6,962 m (22,841 ft) above sea level. The peak of Chimborazo in the Ecuadorean Andes is farther from the centre of the Earth than any other location on the Earth's surface. This is because of the equatorial bulge that results from the Earth's rotation. The world's highest volcanoes are in the Andes, including Ojos del Salado on the Chile-Argentina frontier which rises to 6,893 m (22,615 ft). Fifty other Andean volcanoes also rise above 6,000 m (19,685 ft).

Name[link]

The etymology of the word Andes has been debated. The major consensus is that it derives from the Quechua word anti, which means "high crest". Others believe that Andes comes from Anti Suyu, one of the four regions of the Inca empire. It is more likely however that the word Antisuyo derives from the use of Anti to designate mountain chains. Derivation from the Spanish andén (in the sense of cultivation terrace) has also been proposed, yet considered very unlikely.

Geography[link]

Aerial view of Aconcagua.

The Andes can be divided into three sections:

I. The Southern Andes in Argentina and Chile;
II. The Central Andes, including the Chilean and Peruvian cordilleras and parts of Bolivia;
III. The Northern Andes in Venezuela, Colombia, and Ecuador that consists of two parallel ranges, the Cordillera Occidental and the Cordillera Oriental. In Colombia, north of its the border with Ecuador, the Andes split in three parallel ranges, the western, central, and eastern ranges. (The cordillera occidental, central, and oriental).

In the northern part of the Andes, the isolated Sierra Nevada de Santa Marta range is often considered to be part of the Andes. This eastern range of Colombia is the only one that extends to Venezuela.^[1] The term cordillera comes from the Spanish word "cuerda", meaning "rope". The Andes range is about 200 km (124 mi) wide throughout its length, except in the Bolivian flexure where it is about 640 kilometres (398 mi) wide. The islands of the Dutch Caribbean Aruba, Bonaire, and Curaçao, which lie in the Caribbean Sea off the coast of Venezuela, were thought to represent the submerged peaks of the extreme northern edge of the Andes range, but ongoing geological studies indicate that such a simplification does not do justice to the complex tectonic boundary between the South-American and Caribbean plates.^[2]

Geology[link]

Geology of the Andes
Orogenies
Pampean orogeny
Famatinian orogeny
Gondwanide orogeny
Andean orogeny
Fold-thrust belts
Central Andean | Patagonian
Batholiths
Peruvian Coastal | North Patagonian | South Patagonian
Subducted structures
Antarctic Plate | Carnegie Ridge | Chile Rise | Farallon Plate (formerly) | Juan Fernández Ridge | Nazca Plate | Nazca Ridge
Faults
Gastre | Liquiñe-Ofqui | Magallanes-Fagnano
Andean Volcanic Belt
Northern Zone| Peruvian flat-slab | Central Zone | Pampean flat-slab | Southern Zone | Patagonian Gap | Austral Zone
Paleogeographic terminology
Arequipa-Antofalla Terrane | Chilenia | Chiloé Block | Cuyania | Iapetus Ocean | Madre de Dios Terrane | Mejillonia | Pampia
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The Andes are a Mesozoic – Tertiary orogenic belt of mountains along the Pacific Ring of Fire, a zone of volcanic activity that encompasses the Pacific rim of the Americas as well as the Asia-Pacific region. The Andes are the result of plate tectonics processes, caused by the subduction of oceanic crust beneath the South American plate. The main cause of the rise of the Andes is the compression of western rim of the South American Plate due to the subduction of the Nazca Plate and the Antarctic Plate. To the east, the Andes range is bounded by several sedimentary basins such as Orinoco, Amazon Basin, Madre de Dios and Gran Chaco which separates the Andes from the ancient cratons in eastern South America. In the south the Andes shares a long boundary with the former Patagonia Terrane. To the west, the Andes end at the Pacific Ocean, although the Peru-Chile trench can be considered its ultimate western limit. From a geographical approach the Andes are considered to have their western boundaries marked by the appearance of coastal lowlands and a less rugged topography.

Orogeny[link]

The western rim of the South American Plate has been the place of several pre-Andean orogenies since at least the of the late Proterozoic and early Paleozoic when several terranes and microcontinents collided and amalgamated with the ancient cratons of eastern South America, by then the South American part of Gondwana.

The formation of the modern Andes began with the events of the Triassic when Pangea began to break up and several rifts developed. It continued through the Jurassic Period. It was during the Cretaceous Period that the Andes began to take its present form, by the uplifting, faulting and folding of sedimentary and metamorphic rocks of the ancient cratons to the east. The rise of the Andes has not been constant and different regions have had different degrees of tectonic stress, uplift, and erosion.

Tectonic forces above the subduction zone along the entire west coast of South America where the Nazca Plate and a part of the Antarctic Plate are sliding beneath the South American Plate continue to produce an ongoing orogenic event resulting in minor to major earthquakes and volcanic eruptions to this day. In the extreme south a major transform fault separates Tierra del Fuego from the small Scotia Plate. Across the 1,000 km (620 mi) wide Drake Passage lie the mountains of the Antarctic Peninsula south of the Scotia Plate which appear to be a continuation of the Andes chain.^{[citation needed]}

Volcanism[link]

Astronaut photograph with the high plains of the Andes Mountains in the foreground, with a line of young volcanoes facing the much lower Atacama Desert.

The Andes range has many active volcanoes, which are distributed in four volcanic zones separated by areas of inactivity. The Andean volcanism is a result of subduction of the Nazca Plate and Antarctic Plate underneath the South American Plate. The belt is subdivided into four main volcanic zones that are separated from each other by volcanic gaps. The volcanoes of the belt are diverse in terms of activity style, products and morphology. While some differences can be explained by which volcanic zone a volcano belongs to, there are significant differences inside volcanic zones and even between neighboring volcanoes. Despite being a type location for calc-alkalic and subduction volcanism, the Andean Volcanic Belt has a large range of volcano-tectonic settings, such as rift systems and extrensional zones, transpressional faults, subduction of mid-ocean ridges and seamount chains apart from a large range on crustal thicknesses and magma ascent paths, and different amount of crustal assimilations.

Ore deposits and evaporites[link]

The Andes mountains host large ore and salt deposits and some of its eastern fold and thrust belt acts as traps for commercially exploitable amounts of hydrocarbons. In the forelands of the Atacama desert some of the largest porphyry copper mineralizations occurs making Chile and Peru the first and second largest exporters of copper in the world. Porphyry copper in the western slopes of the Andes has been generated by hydrothermal fluids (mostly water) during the cooling of plutons or volcanic systems. The porphyry mineralization further benefited from the dry climate that let them largely out of the disturbing actions of meteoric water. The dry climate in the central western Andes have also led to the creation of extensive saltpeter deposits which were extensively mined until the invention of synthetic nitrates. Yet another result of the dry climate are the salars of Atacama and Uyuni, the first one being the largest source of lithium today and the second the world’s largest reserve of the element. Early Mesozoic and Neogene plutonism in Bolivias Cordillera Central created the Bolivian tin belt as well as the famous, now depleted, deposits of Cerro Rico de Potosí.

Climate and hydrology[link]

Central Andes

Astronaut photograph of the Central Andes

The climate in the Andes varies greatly depending on latitude, altitude, and proximity to the sea. Temperature, atmospheric pressure and humidity decrease in higher elevations. The southern section is rainy and cool, the central Andes are dry. The northern Andes are typically rainy and warm, with an average temperature of 18 °C (64 °F) in Colombia. The climate is known to change drastically in rather short distances. Rainforests exist just miles away from the snow covered peak Cotopaxi. The mountains have a large effect on the temperatures of nearby areas. The snow line depends on the location. It is at between 4,500 and 4,800 m (14,800–15,800 ft) in the tropical Ecuadorian, Colombian, Venezuelan, and northern Peruvian Andes, rising to 4,800–5,200 m (15,800–17,060 ft) in the drier mountains of southern Peru south to northern Chile south to about 30°S, then descending to 4,500 m (14,760 ft) on Aconcagua at 32°S, 2,000 m (6,600 ft) at 40°S, 500 m (1,640 ft) at 50°S, and only 300 m (980 ft) in Tierra del Fuego at 55°S; from 50°S, several of the larger glaciers descend to sea level.^[3]

The Andes of Chile and Argentina can be divided in two climatic and glaciological zones; the Dry Andes and the Wet Andes. Since the Dry Andes extends from the latitudes of Atacama Desert to the area of Maule River, precipitation is more sporadic and there are strong temperature oscillations. The line of equilibrium may shift drastically over short periods of time, leaving a whole glacier in the ablation area or in the accumulation area.

In the high Andes of central Chile and Mendoza Province rock glaciers are larger and more common than glaciers; this is due to the high exposure to solar radiation.^[4]

Though precipitation increases with the height, there are semiarid conditions in the nearly 7000 m towering highest mountains of the Andes. This dry steppe climate is considered to be typically of the subtropic position at 32-34° S. Therefore in the valley bottoms do not grow woods but only dwarf scrub. The largest glaciers, as e.g. the Plomo glacier and the Horcones glaciers do not even reach 10 km in length and have an only insignificant ice thickness. At glacial times however, c. 20 000 years ago, the glaciers were over ten times longer. On the East-side of this section of the Mendozina Andes they flowed down to 2060 m and on the West-side to c. 1220 m asl.^[5][6] The massifs of Cerro Aconcagua (6962 m), Cerro Tupungato (6550 m) and Nevado Juncal (6110 m) are situated deca-kilometres away from each other and were connected by a joint ice stream network. Its dendritic glacier arms, i.e. components of valley glaciers, were up to 112.5 km long, over 1020, i.e. 1250 m thick and overspanned a vertical distance of 5150 altitude metres. The climatic glacier snowline (ELA) was lowered from currently 4600 m to 3200 m at glacial times.^{[5][7][8][9][10][11][12][13][14]}

Flora[link]

The Andean region cuts across several natural and floristc regions due to its extension from Caribbean Venezuela to cold, windy and wet Cape Horn passing through the hyperarid Atacama Desert. Rainforests used to encircle much of the northern Andes but are now greatly diminished, especially in the Chocó and inter-Andean valleys of Colombia. As a direct opposite of the humid Andean slopes are the relatively dry Andean slopes in most of western Peru, Chile and Argentina. Along with several Interandean Valles, they are typically dominated by deciduous woodland, shrub and xeric vegetation, reaching the extreme in the slopes near the virtually lifeless Atacama Desert.

About 30,000 species of vascular plants live in the Andes with roughly half being endemic to the region, surpassing the diversity of any other hotspot.^[15] The small tree Cinchona pubescens, a source of quinine which is used to treat malaria, is found widely in the Andes as far south as Bolivia. Other important crops that originated from the Andes are tobacco and potatoes. The high-altitude Polylepis forests and woodlands are found in the Andean areas of Colombia, Ecuador, Peru, Bolivia and Chile. These trees, by locals referred to as Queñua, Yagual and other names, can be found at altitudes of 4,500 m (14,760 ft) above sea level. It remains unclear if the patchy distribution of these forests and woodlands is natural, or the result of clearing which began during the Incan period. Regardless, in modern times the clearance has accelerated, and the trees are now considered to be highly endangered, with some believing that as little as 10% of the original woodland remains.^[16]

Fauna[link]

A male Andean Cock-of-the-rock, a species found in humid Andean forests.

Herds of alpacas on the mountain Ausangate hillside.

The Andes is rich in fauna: With almost 3,500 species, of which roughly 2/3 are endemic to the region, the Andes is the most important region in the world for amphibians.^[15] The diversity of animals in the Andes is high, with almost 600 species of mammals (13% endemic), more than 1,700 species of birds (about 1/3 endemic), more than 600 species of reptile (about 45% endemic), and almost 400 species of fish (about 1/3 endemic).^[15]

The Vicuña and Guanaco can be found living in the Altiplano, while the closely related domesticated Llama and Alpaca are widely kept by locals as pack animals and for their meat and wool. The nocturnal chinchillas, two threatened members of the rodent order, inhabit the Andes' alpine regions. The Andean Condor, the largest bird of its kind in the Western Hemisphere, occurs throughout much of the Andes but generally in very low densities. Other animals found in the relatively open habitats of the high Andes include the huemul, cougar, foxes in the genus Pseudalopex, and, for birds, certain species of tinamous (notably members of the genus Nothoprocta), Andean Goose, Giant Coot, flamingos (mainly associated with hypersaline lakes), Lesser Rhea, Andean Flicker, Diademed Sandpiper-plover, miners, sierra-finches and diuca-finches.

Lake Titicaca hosts several endemics, among them the highly endangered Titicaca Flightless Grebe and Titicaca Water Frog. A few species of hummingbirds, notably some hillstars, can be seen at altitudes above 4,000 m (13,100 ft), but far higher diversities can be found at lower altitudes, especially in the humid Andean forests ("cloud forests") growing on slopes in Colombia, Ecuador, Peru, Bolivia and far northwestern Argentina. These forest-types, which includes the Yungas and parts of the Chocó, are very rich in flora and fauna, although few large mammals exists, exceptions being the threatened Mountain Tapir, Spectacled Bear and Yellow-tailed Woolly Monkey.

Birds of humid Andean forests include mountain-toucans, quetzals and the Andean Cock-of-the-rock, while mixed species flocks dominated by tanagers and Furnariids commonly are seen - in contrast to several vocal but typically cryptic species of wrens, tapaculos and antpittas.

A number of species such as the Royal Cinclodes and White-browed Tit-spinetail are associated with Polylepis, and consequently also threatened.

Human activity[link]

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Map showing cultural influence in the Andes

The Andes mountains form a north-south axis of cultural influences. A long series of cultural development culminated in the expansion of the Inca civilization and Inca Empire in the central Andes during the 15th century. The Incas formed this civilization through imperialistic militarism as well as careful and meticulous governmental management.^[17] The government sponsored the construction of aqueducts and roads in addition to preexisting installations. Some of these constructions are still in existence today.

Devastated by European diseases to which they had no immunity, and civil wars, in 1532 the Incas were defeated by an alliance composed of tens of thousands allies from nations they had subjugated (e.g. Huancas, Chachapoyas, Cañaris) and a small army of 180 Spaniards led by Francisco Pizarro. One of the few Inca sites the Spanish never found in their conquest was Machu Picchu, which lay hidden on a peak on the eastern edge of the Andes where they descend to the Amazon. The main surviving languages of the Andean peoples are those of the Quechua and Aymara language families. Woodbine Parish and Joseph Barclay Pentland surveyed a large part of the Bolivian Andes from 1826 to 1827.

In modern times, the largest Andean cities are Bogota, Colombia, with a population of about eight million, La Paz, Bolivia, and Quito, Ecuador.

Transportation[link]

Troncal 7 (Trans-Andes Highway) in the Venezuelan Andes.

Several major cities exist either in the Andes or in the foothills, among which are Bogotá, Medellín and Cali, Colombia; Quito, Ecuador; Mérida, Venezuela; La Paz, Bolivia; Santiago, Chile, and Cusco, Peru. These and most other cities and large towns are now connected with asphalt-paved roads, while smaller towns are often connected by dirt roads, which may require a four-wheel-drive vehicle.^[1]

The rough terrain has historically put the costs of building highways and railroads that cross the Andes out of reach of most neighboring countries, even with modern civil engineering practices. For example, the main cross over the Andes between Argentina and Chile is still accomplished through the Paso Internacional Los Libertadores, only recently the ends of some highways that came rather close to one another from the east and the west have been connected.^[18] Much of the transportation of passengers is done via airline.

For decades, Chile claimed ownership of land on the eastern side of the Andes. However, these claims were given up in about 1870 during the War of the Pacific between Chile, the allied Bolivia and Peru, in a diplomatic deal to keep Argentina out of the war. The Chilean Army and Chilean Navy defeated the combined forces of Bolivia and Peru, and Chile took over Bolivia's only province on the Pacific Coast, some land from Peru, also - that was returned to Peru later. Bolivia has been a landlocked country ever since then.

However, if Chile had kept some land to the east, the difficulties in transportation between east and west would have been enormous. There has also been bad blood between Bolivia and Chile ever since 1870, and these two countries have not had diplomatic relations since about 1974.

Because of the tortuous terrain in places, villages and towns in which motorized vehicles are of little use are still present. Locally, the relatives of the camel, the llama and the alpaca continue to carry out important uses as pack animals, but this use has generally diminished in modern times.

Agriculture[link]

The ancient peoples of the Andes such as the Incas have practiced irrigation techniques for over 6,000 years. Because of the mountain slopes, terracing has been a common practice. Terracing, however, was only extensively employed after Incan imperial expansions to fuel their expanding realm. The potato holds a very important role as an internally consumed staple crop. Maize was also an important crop for these people, and was used for the production of chicha, important to Andean native people. Currently, tobacco, cotton and coffee are the main export crops. Coca, despite eradication programmes in some countries, remains an important crop for legal local use in a mildly stimulating herbal tea, and, both controversially and illegally, for the production of cocaine.

Mining[link]

The Andes rose to fame for its mineral wealth during the Spanish conquest of South America. Although Andean Amerindian peoples crafted ceremonial jewelry of gold and other metals the mineralizations of the Andes were first mined in large scale after the Spanish arrival. Potosí in present-day Bolivia was one of the principal mines of the Spanish Empire in the New World. Río de la Plata and Argentina derive their names from the silver of Potosí.

Currently, mining in the Andes of Chile and Peru place these countries as the 1st and 3rd major producers of copper in the world. The Bolivian Andes produce principally tin although historically silver mining had a huge impact on the economy of 17th century Europe.

There is a long history of mining in the Andes, from the Spanish silver mines in Potosí in the 16th century to the vast current porphyry copper deposits of Chuquicamata and Escondida in Chile and Toquepala in Peru. Other metals including iron, gold and tin in addition to non-metallic resources are also important.

Peaks[link]

This list contains some of the major peaks in the Andes mountain range. The highest peak is Aconcagua of Argentina (see below).

Argentina[link]

Tronador, Argentina/Chile

• Aconcagua, 6,962 m (22,841 ft)
• Cerro Bonete, 6,759 m (22,175 ft)
• Galán, 5,912 m (19,396 ft)
• Mercedario, 6,720 m (22,047 ft)
• Pissis, 6,795 m (22,293 ft)

Border between Argentina and Chile[link]

• Cerro Bayo, 5,401 m (17,720 ft)
• Cerro Chaltén, 3,375 m (11,073 ft) or 3,405 m, Patagonia, also known as Cerro Fitz Roy
• Cerro Escorial, 5,447 m (17,871 ft)
• Cordón del Azufre, 5,463 m (17,923 ft)
• Falso Azufre, 5,890 m (19,324 ft)
• Incahuasi, 6,620 m (21,719 ft)
• Lastarria, 5,697 m (18,691 ft)
• Llullaillaco, 6,739 m (22,110 ft)
• Maipo, 5,264 m (17,270 ft)
• Marmolejo, 6,110 m (20,046 ft)
• Ojos del Salado, 6,893 m (22,615 ft)
• Olca, 5,407 m (17,740 ft)
• Sierra Nevada de Lagunas Bravas, 6,127 m (20,102 ft)
• Socompa, 6,051 m (19,852 ft)
• Nevado Tres Cruces, 6,749 m (south summit) (III Region)
• Tronador, 3,491 m (11,453 ft)
• Tupungato, 6,570 m (21,555 ft)
• Nacimiento, 6,492 m (21,299 ft)

Bolivia[link]

• Ancohuma, 6,427 m (21,086 ft)
• Cabaray, 5,860 m (19,226 ft)
• Chacaltaya, 5,421 m (17,785 ft)
• Huayna Potosí, 6,088 m (19,974 ft)
• Illampu, 6,368 m (20,892 ft)
• Illimani, 6,438 m (21,122 ft)
• Macizo de Larancagua, 5,520 m (18,110 ft)
• Macizo de Pacuni, 5,400 m (17,720 ft)
• Nevado Anallajsi, 5,750 m (18,865 ft)
• Nevado Sajama, 6,542 m (21,463 ft)
• Patilla Pata, 5,300 m (17,390 ft)
• Tata Sabaya, 5,430 m (17,815 ft)

Border between Bolivia and Chile[link]

• Acotango, 6,052 m (19,856 ft)
• Cerro Minchincha, 5,305 m (17,405 ft)
• Irruputuncu, 5,163 m (16,939 ft)
• Licancabur, 5,920 m (19,423 ft)
• Olca, 5,407 m (17,740 ft)
• Parinacota, 6,348 m (20,827 ft)
• Paruma, 5,420 m (17,782 ft)
• Pomerape, 6,282 m (20,610 ft)

Chile[link]

• Monte San Valentin, 4,058 m (13,314 ft)
• Cerro Paine Grande, c.2,750 m (9,022 ft)
• Cerro Macá, c.2,300 m (7,546 ft)
• Monte Darwin, c.2,500 m (8,202 ft)
• Volcan Hudson, c.1,900 m (6,234 ft)
• Cerro Castillo Dynevor, c.1,100 m (3,609 ft)
• Mount Tarn, c.825 m (2,707 ft)
• Polleras, 5,993 m (19,662 ft)

Colombia[link]

• Pico Cristóbal Colón, 5,775 m (18,947 ft)
• Nevado del Huila, 5,365 m (17,602 ft)
• Nevado del Ruiz, 5,321 m (17,457 ft)
• Nevado del Tolima, 5,205 m (17,077 ft)
• Pico Pan de Azucar, 5,200 m (17,060 ft)
• Ritacuba Negra, 5,320 m (17,454 ft)
• Nevado del Cumbal, 4,764 m (15,630 ft)
• Cerro Negro de Mayasquer, 4,445 m (14,583 ft)
• Ritacuba Blanco, 5,410 m (17,749 ft)
• Nevado del Quindío, 5,215 m (17,110 ft)
• Purace, 4,655 m (15,272 ft)
• Santa Isabel, 4,955 m (16,257 ft)
• Doña Juana, 4,150 m (13,615 ft)
• Galeras, 4,276 m (14,029 ft)
• Azufral. 4,070 m (13,353 ft)

Ecuador[link]

• Antisana, 5,752 m (18,871 ft)
• Cayambe, 5,790 m (18,996 ft)
• Chimborazo, 6,268 m (20,564 ft)
• Corazón, 4,790 m (15,715 ft)
• Cotopaxi, 5,897 m (19,347 ft)
• El Altar, 5,320 m (17,454 ft)
• Illiniza, 5,248 m (17,218 ft)
• Pichincha, 4,784 m (15,696 ft)
• Quilotoa, 3,914 m (12,841 ft)
• Reventador, 3,562 m (11,686 ft)
• Sangay, 5,230 m (17,159 ft)
• Tungurahua, 5,023 m (16,480 ft)
• Titicacha, 5,035 m (16,519 ft)

Peru[link]

• Alpamayo, 5,947 m (19,511 ft)
• Artesonraju, 6,025 m (19,767 ft)
• Carnicero, 5,960 m (19,554 ft)
• El Misti, 5,822 m (19,101 ft)
• El Toro, 5,830 m (19,127 ft)
• Huandoy, 6,395 m (20,981 ft)
• Huascarán, 6,768 m (22,205 ft)
• Jirishanca, 6,094 m (19,993 ft)
• Nevado de Huaytapallana, 5,557 m (18,232 ft)
• Pumasillo, 5,991 m (19,656 ft)
• Rasac, 6,040 m (19,816 ft)
• Rondoy, 5,870 m (19,259 ft)
• Sarapo, 6,127 m (20,102 ft)
• Seria Norte, 5,860 m (19,226 ft)
• Siula Grande, 6,344 m (20,814 ft)
• Yerupaja, 6,635 m (21,768 ft)
• Yerupaja Chico, 6,089 m (19,977 ft)

Venezuela[link]

• Pico Bolívar, 4,981 m (16,342 ft)
• Pico Humboldt, 4,940 m (16,207 ft)
• Pico Bonpland, 4,880 m (16,010 ft)
• Pico La Concha, 4,870 m (15,978 ft)
• Pico Piedras Blancas, 4,740 m (15,551 ft)

See also[link]

• Andean Geology - a scientific journal
• Andesite line
• Apu (god)
• Cordillera Mountains in the Philippines
• Mountain Passes of the Andes

Notes[link]

References[link]

• John Biggar, The Andes: A Guide For Climbers, 3rd. edition, 2005, ISBN 0-9536087-2-7
• Tui de Roy, The Andes: As the Condor Flies. 2005, ISBN 1-55407-070-8
• Fjeldså, J., & N. Krabbe (1990). The Birds of the High Andes. Zoological Museum, University of Copenhagen, Copenhagen. ISBN 87-88757-16-1
• Fjeldså, J. & M. Kessler. 1996. Conserving the biological diversity of Polylepis woodlands of the highlands on Peru and Bolivia, a contribution to sustainable natural resource management in the Andes. NORDECO, Copenhagen.

External links[link]

Wikimedia Commons has media related to: Andes

• Andes geology (University of Arizona)
• Climate and animal life of the Andes
• Regions and Microclimates in the Andes
• http://www.peaklist.org/WWlists/ultras/southamerica.html Complete list of mountains in South America with a prominence of at least 1,500 m (4,920 ft)

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Civilization (or civilisation) is a sometimes controversial term that has been used in several related ways. Primarily, the term has been used to refer to the material and instrumental side of human cultures that are complex in terms of technology, science, and division of labor. Such civilizations are generally hierarchical and urbanized. In a classical context, people were called "civilized" to set them apart from barbarians, while in a modern-day context, "civilized peoples" have been contrasted with primitive peoples.

There is a tendency to use the term in a less strict way, to mean approximately the same thing as "culture" and therefore, the term can more broadly refer to any important and clearly defined human society.^{[citation needed]} Still, even when used in this second sense, the word is often restricted to apply only to societies that have attained a particular level of advancement-especially the founding of cities.

The level of advancement of a civilization is often measured by its progress in agriculture, long-distance trade, occupational specialization, a special governing class and urbanism. Aside from these core elements, a civilization is often marked by any combination of a number of secondary elements, including a developed transportation system, writing, standardized measurement, currency, contractual and (tort-based) legal systems, characteristic art and architecture, mathematics, enhanced scientific understanding, metallurgy, political structures, and an astronomical understanding.

The Great Mosque of Kairouan, also called the Mosque of Uqba, is the oldest mosque in North Africa and one of the most important monuments of Islamic civilization.[1][2] In addition to its artistic and architectural importance, between the 9th and 11th centuries it was the main centre of culture and education in all of North Africa.[3] The Great Mosque of Kairouan is located in the World Heritage city of Kairouan in Tunisia.

The ancient city of Mohenjo-daro, built around 2600 BCE by the Ancient Indus valley civilization, spanning Pakistan, India and Afghanistan is known to be one of the world's earliest cities.

The Acropolis, directly influencing architecture and engineering in Western, Islamic, and Eastern civilizations up to the present day, 2400 years after construction.

Etymology[link]

The Roman Forum, the political, economic, cultural, and religious center of the Ancient Rome civilization, during the Republic and later Empire, its ruins still visible today in modern-day Rome.

The Great Wall of China

The word civilization comes from the Latin civilis, meaning civil, related to the Latin civis, meaning citizen, and civitas, meaning city or city-state.^[4]

In the sixth century, the Byzantine Emperor Justinian oversaw the consolidation of Roman civil law. The resulting collection is called the Corpus Juris Civilis. In the 11th century, professors at the University of Bologna, Western Europe's first university, rediscovered the Corpus Juris Civilis, and its influence began to be felt across Europe. In 1388, the word civil appeared in English meaning "of or related to citizens."^[5] In 1704, civilization was used to mean "a law which makes a criminal process into a civil case." Civilization was not used in its modern sense to mean "the opposite of barbarism"—as contrasted to civility, meaning politeness or civil virtue—until the second half of the 18th century.

According to Emile Benveniste (1954^[6]), the earliest written occurrence in English of civilisation in its modern sense may be found in Adam Ferguson's An Essay on the History of Civil Society (Edinburgh, 1767 - p. 2): "Not only the individual advances from infancy to manhood, but the species itself from rudeness to civilisation."

It should be noted that this usage incorporates the concept of superiority and maturity of "civilized" existence, as contrasted to "rudeness", which is used to denote coarseness, as in a lack of refinement or "civility."

Before Benveniste's inquiries, the New English Dictionary quoted James Boswell's conversation with Samuel Johnson concerning the inclusion of Civilization in Johnson's dictionary:

On Monday, March 23 (1772), I found him busy, preparing a fourth edition of his folio Dictionary... He would not admit civilization, but only civility. With great deference to him I thought civilization, from to civilize, better in the sense opposed to barbarity than civility, as it is better to have a distinct word for each sense, than one word with two senses, which civility is, in his way of using it.

Benveniste demonstrated that previous occurrences could be found, which explained the quick adoption of Johnson's definition. In 1775 the dictionary of Ast defined civilization as "the state of being civilized; the act of civilizing",^[6] and the term was frequently used by Adam Smith in An Inquiry into the Nature and Causes of the Wealth of Nations (1776).^[6] Beside Smith and Ferguson, John Millar also used it in 1771 in his Observations concerning the distinction of ranks in society.^[6]

The history of the word in English appears to be connected with the parallel development in French, which may be the original source. As the first occurrence of civilization in French was found by Benveniste in the Marquis de Mirabeau's L'Ami des hommes ou traité de la population (written in 1756 but published in 1757), Benveniste's query was to know if the English word derived from the French, or if both evolved independently — a question which needed more research. According to him, the word civilization may in fact have been used by Ferguson as soon as 1759.^[6]

Furthermore, Benveniste notes that, contrasted to civility, a static term, civilization conveys a sense of dynamism. He thus writes that:

It was not only a historical view of society; it was also an optimist and resolutely non theological interpretation of its evolution which asserted itself, sometimes at the insu of those who proclaimed it, and even if some of them, and first of all Mirabeau, still counted religion as the first factor of 'civilization.^[6][7]

In the late 1700s and early 1800s, both during the French revolution, and in English, "civilization" was referred to in the singular, never the plural, because it referred to the progress of humanity as a whole. This is still the case in French.^[8] More recently "civilizations" is sometimes used as a synonym for the broader term "cultures" in both popular and academic circles.^[9] However, the concepts of civilization and culture are not always considered interchangeable. For example, a small nomadic tribe may be judged not to have a civilization, but it would surely be judged to have a culture (defined as "the arts, customs, habits... beliefs, values, behavior and material habits that constitute a people's way of life").

Civilization is not always seen as an improvement. One historically important distinction between culture and civilization stems from the writings of Rousseau, and particularly his work concerning education, Emile. In this perspective, civilization, being more rational and socially driven, is not fully in accordance with human nature, and "human wholeness is achievable only through the recovery of or approximation to an original prediscursive or prerational natural unity". (See noble savage.) From this notion, a new approach was developed especially in Germany, first by Johann Gottfried Herder, and later by philosophers such as Kierkegaard and Nietzsche. This sees cultures (plural) as natural organisms which are not defined by "conscious, rational, deliberative acts" but rather a kind of pre-rational "folk spirit". Civilization, in contrast, though more rational and more successful concerning material progress, is seen as un-natural, and leads to "vices of social life" such as guile, hypocrisy, envy, and avarice.^[8] During World War II, Leo Strauss, having fled Germany, argued in New York that this approach to civilization was behind Nazism and German militarism and nihilism.^[10]

In his book The Philosophy of Civilization, Albert Schweitzer outlined the idea that there are dual opinions within society: one regarding civilization as purely material and another regarding civilization as both ethical and material. He stated that the current world crisis was, then in 1923, due to a humanity having lost the ethical conception of civilization. In this same work, he defined civilization, saying that it "is the sum total of all progress made by man in every sphere of action and from every point of view in so far as the progress helps towards the spiritual perfecting of individuals as the progress of all progress."

Characteristics[link]

26th century BCE Sumerian cuneiform script in Sumerian language, listing gifts to the high priestess of Adab on the occasion of her election. One of the earliest examples of human writing.

Social scientists such as V. Gordon Childe have named a number of traits that distinguish a civilization from other kinds of society.^[11] Civilizations have been distinguished by their means of subsistence, types of livelihood, settlement patterns, forms of government, social stratification, economic systems, literacy, and other cultural traits.

All civilizations have depended on agriculture for subsistence. Growing food on farms results in a surplus of food, particularly when people use intensive agricultural techniques such as irrigation and crop rotation. Grain surpluses have been especially important because they can be stored for a long time. A surplus of food permits some people to do things besides produce food for a living: early civilizations included artisans, priests and priestesses, and other people with specialized careers. A surplus of food results in a division of labor and a more diverse range of human activity, a defining trait of civilizations. However, in some places hunter-gatherers have had access to food surpluses, such as among some of the indigenous peoples of the Pacific Northwest and perhaps during the Mesolithic Natufian culture. It is possible that food surpluses and relatively large scale social organization and division of labor predates plant and animal domestication.^[12]

Civilizations have distinctly different settlement patterns from other societies. The word civilization is sometimes simply defined as "'living in cities'".^[13] Non-farmers tend to gather in cities to work and to trade.

"No one in the history of civilization has shaped our understanding of science and natural philosophy more than the great Greek philosopher and scientist Aristotle (384-322 BCE), who exerted a profound and pervasive influence for more than two thousand years" —Gary B. Ferngren^[14]

Compared with other societies, civilizations have a more complex political structure, namely the state.^[15] State societies are more stratified^[16] than other societies; there is a greater difference among the social classes. The ruling class, normally concentrated in the cities, has control over much of the surplus and exercises its will through the actions of a government or bureaucracy. Morton Fried, a conflict theorist, and Elman Service, an integration theorist, have classified human cultures based on political systems and social inequality. This system of classification contains four categories:^{[citation needed]}

• Hunter-gatherer bands, which are generally egalitarian.^[17]
• Horticultural/pastoral societies in which there are generally two inherited social classes; chief and commoner.
• Highly stratified structures, or chiefdoms, with several inherited social classes: king, noble, freemen, serf and slave.
• Civilizations, with complex social hierarchies and organized, institutional governments.^[18]

Economically, civilizations display more complex patterns of ownership and exchange than less organized societies. Living in one place allows people to accumulate more personal possessions than nomadic people. Some people also acquire landed property, or private ownership of the land. Because a percentage of people in civilizations do not grow their own food, they must trade their goods and services for food in a market system, or receive food through the levy of tribute, redistributive taxation, tariffs or tithes from the food producing segment of the population. Early civilizations developed money as a medium of exchange for these increasingly complex transactions. To oversimplify, in a village the potter makes a pot for the brewer and the brewer compensates the potter by giving him a certain amount of beer. In a city, the potter may need a new roof, the roofer may need new shoes, the cobbler may need new horseshoes, the blacksmith may need a new coat, and the tanner may need a new pot. These people may not be personally acquainted with one another and their needs may not occur all at the same time. A monetary system is a way of organizing these obligations to ensure that they are fulfilled fairly.

Writing, developed first by people in Sumer, is considered a hallmark of civilization and "appears to accompany the rise of complex administrative bureaucracies or the conquest state."^[19] Traders and bureaucrats relied on writing to keep accurate records. Like money, writing was necessitated by the size of the population of a city and the complexity of its commerce among people who are not all personally acquainted with each other. However, writing is not always necessary for civilization. The Inca civilization of the Andes did not use writing at all, yet it still functioned as a society.

Aided by their division of labor and central government planning, civilizations have developed many other diverse cultural traits. These include organized religion, development in the arts, and countless new advances in science and technology.

Through history, successful civilizations have spread, taking over more and more territory, and assimilating more and more previously-uncivilized people. Nevertheless, some tribes or people remain uncivilized even to this day. These cultures are called by some "primitive," a term that is regarded by others as pejorative. "Primitive" implies in some way that a culture is "first" (Latin = primus), that it has not changed since the dawn of humanity, though this has been demonstrated not to be true. Specifically, as all of today's cultures are contemporaries, today's so-called primitive cultures are in no way antecedent to those we consider civilized. Many anthropologists use the term "non-literate" to describe these peoples.

Civilization has been spread by colonization, invasion, religious conversion, the extension of bureaucratic control and trade, and by introducing agriculture and writing to non-literate peoples. Some non-civilized people may willingly adapt to civilized behaviour. But civilization is also spread by the technical, material and social dominance that civilization engenders.

Cultural identity[link]

"Civilization" can also refer to the culture of a complex society, not just the society itself. Every society, civilization or not, has a specific set of ideas and customs, and a certain set of manufactures and arts that make it unique. Civilizations tend to develop intricate cultures, including literature, professional art, architecture, organized religion, and complex customs associated with the elite.

The intricate culture associated with civilization has a tendency to spread to and influence other cultures, sometimes assimilating them into the civilization (a classic example being Chinese civilization and its influence on nearby civilizations such as Korea, Japan and Vietnam). Many civilizations are actually large cultural spheres containing many nations and regions. The civilization in which someone lives is that person's broadest cultural identity.

Many historians have focused on these broad cultural spheres and have treated civilizations as discrete units. Early twentieth-century philosopher Oswald Spengler,^[20] uses the German word "Kultur," "culture," for what many call a "civilization". Spengler believes a civilization's coherence is based on a single primary cultural symbol. Cultures experience cycles of birth, life, decline, and death, often supplanted by a potent new culture, formed around a compelling new cultural symbol. Spengler states civilization is the beginning of the decline of a culture as, "...the most external and artificial states of which a species of developed humanity is capable."^[20]

This "unified culture" concept of civilization also influenced the theories of historian Arnold J. Toynbee in the mid-twentieth century. Toynbee explored civilization processes in his multi-volume A Study of History, which traced the rise and, in most cases, the decline of 21 civilizations and five "arrested civilizations." Civilizations generally declined and fell, according to Toynbee, because of the failure of a "creative minority", through moral or religious decline, to meet some important challenge, rather than mere economic or environmental causes.

Samuel P. Huntington defines civilization as "the highest cultural grouping of people and the broadest level of cultural identity people have short of that which distinguishes humans from other species." Huntington's theories about civilizations are discussed below.^[21]

Complex systems[link]

Another group of theorists, making use of systems theory, looks at a civilization as a complex system, i.e., a framework by which a group of objects can be analyzed that work in concert to produce some result. Civilizations can be seen as networks of cities that emerge from pre-urban cultures, and are defined by the economic, political, military, diplomatic, social, and cultural interactions among them. Any organization is a complex social system, and a civilization is a large organization. Systems theory helps guard against superficial but misleading analogies in the study and description of civilizations.

Systems theorists look at many types of relations between cities, including economic relations, cultural exchanges, and political/diplomatic/military relations. These spheres often occur on different scales. For example, trade networks were, until the nineteenth century, much larger than either cultural spheres or political spheres. Extensive trade routes, including the Silk Road through Central Asia and Indian Ocean sea routes linking the Roman Empire, Persian Empire, India, and China, were well established 2000 years ago, when these civilizations scarcely shared any political, diplomatic, military, or cultural relations. The first evidence of such long distance trade is in the ancient world. During the Uruk period Guillermo Algaze has argued that trade relations connected Egypt, Mesopotamia, Iran and Afghanistan.^[22] Resin found later in the Royal Tombs of Ur it is suggested was traded northwards from Mozambique.

Many theorists argue that the entire world has already become integrated into a single "world system", a process known as globalization. Different civilizations and societies all over the globe are economically, politically, and even culturally interdependent in many ways. There is debate over when this integration began, and what sort of integration – cultural, technological, economic, political, or military-diplomatic – is the key indicator in determining the extent of a civilization. David Wilkinson has proposed that economic and military-diplomatic integration of the Mesopotamian and Egyptian civilizations resulted in the creation of what he calls the "Central Civilization" around 1500 BCE.^[23] Central Civilization later expanded to include the entire Middle East and Europe, and then expanded to a global scale with European colonization, integrating the Americas, Australia, China and Japan by the nineteenth century. According to Wilkinson, civilizations can be culturally heterogeneous, like the Central Civilization, or homogeneous, like the Japanese civilization. What Huntington calls the "clash of civilizations" might be characterized by Wilkinson as a clash of cultural spheres within a single global civilization. Others point to the Crusades as the first step in globalization. The more conventional viewpoint is that networks of societies have expanded and shrunk since ancient times, and that the current globalized economy and culture is a product of recent European colonialism.

Future[link]

Huntington's map of world civilizations (1996).

Political scientist Samuel Huntington^[24] has argued that the defining characteristic of the 21st century will be a clash of civilizations. According to Huntington, conflicts between civilizations will supplant the conflicts between nation-states and ideologies that characterized the 19th and 20th centuries. These views have been strongly challenged by others like Edward Said, Muhammed Asadi and Amartya Sen.^[25] Ronald Inglehart and Pippa Norris have argued that the "true clash of civilizations" between the Muslim world and the West is caused by the Muslim rejection of the West's more liberal sexual values, rather than a difference in political ideology, although they note that this lack of tolerance is likely to lead to an eventual rejection of (true) democracy.^[26] In Identity and Violence Sen questions if people should be divided along the lines of a supposed 'civilization', defined by religion and culture only. He argues that this ignores the many others identities that make up people and leads to a focus on differences.

Some environmental scientists see the world entering a Planetary Phase of Civilization, characterized by a shift away from independent, disconnected nation-states to a world of increased global connectivity with worldwide institutions, environmental challenges, economic systems, and consciousness.^[27][28] In an attempt to better understand what a Planetary Phase of Civilization might look like in the current context of declining natural resources and increasing consumption, the Global scenario group used scenario analysis to arrive at three archetypal futures: Barbarization, in which increasing conflicts result in either a fortress world or complete societal breakdown; Conventional Worlds, in which market forces or Policy reform slowly precipitate more sustainable practices; and a Great Transition, in which either the sum of fragmented Eco-Communalism movements add up to a sustainable world or globally coordinated efforts and initiatives result in a new sustainability paradigm.^[29]

Author Derrick Jensen argues that modern civilization is intrinsically directed towards the domination of the environment and humanity itself in a harmful and destructive fashion.^[30]

The Kardashev scale classifies civilizations based on their level of technological advancement, specifically measured by the amount of energy a civilization is able to harness. The Kardashev scale makes provisions for civilizations far more technologically advanced than any currently known to exist (see also: Civilizations and the Future, Space civilization).

Fall of civilizations[link]

There have been many explanations put forward for the collapse of civilization. Some focus on historical examples, and others on general theory.

• Ibn Khaldūn's Muqaddimah influenced theories of the analysis, growth and decline of the Islamic civilization. He suggested repeated invasions from nomadic peoples limited development and led to social collapse.
• Edward Gibbon's work The Decline and Fall of the Roman Empire was a well-known and detailed analysis of the fall of Roman civilization. Gibbon suggested the final act of the collapse of Rome was the fall of Constantinople to the Ottoman Turks in 1453 CE. For Gibbon:

  The decline of Rome was the natural and inevitable effect of immoderate greatness. Prosperity ripened the principle of decay; the cause of the destruction multiplied with the extent of conquest; and, as soon as time or accident had removed the artificial supports, the stupendous fabric yielded to the pressure of its own weight. The story of the ruin is simple and obvious; and instead of inquiring why the Roman Empire was destroyed, we should rather be surprised that it has subsisted for so long.[Gibbon, Decline and Fall of the Roman Empire, 2nd ed., vol. 4, ed. by J. B. Bury (London, 1909), pp. 173–174.-Chapter XXXVIII: Reign Of Clovis.--Part VI. General Observations On The Fall Of The Roman Empire In The West.]

• Theodor Mommsen in his "History of Rome (Mommsen)", suggested Rome collapsed with the collapse of the Western Roman Empire in 476 CE and he also tended towards a biological analogy of "genesis," "growth," "senescence," "collapse" and "decay."
• Oswald Spengler, in his "Decline of the West" rejected Petrarch's chronological division, and suggested that there had been only eight "mature civilizations." Growing cultures, he argued, tend to develop into imperialistic civilizations which expand and ultimately collapse, with democratic forms of government ushering in plutocracy and ultimately imperialism.
• Arnold J. Toynbee in his "A Study of History" suggested that there had been a much larger number of civilizations, including a small number of arrested civilizations, and that all civilizations tended to go through the cycle identified by Mommsen. The cause of the fall of a civilization occurred when a cultural elite became a parasitic elite, leading to the rise of internal and external proletariats.
• Joseph Tainter in "The Collapse of Complex Societies" suggested that there were diminishing returns to complexity, due to which, as states achieved a maximum permissible complexity, they would decline when further increases actually produced a negative return. Tainter suggested that Rome achieved this figure in the 2nd Century CE.
• Jared Diamond in his 2005 book "Collapse: How Societies Choose to Fail or Succeed" suggests five major reasons for the collapse of 41 studied cultures: environmental damage, such as deforestation and soil erosion; climate change; dependence upon long-distance trade for needed resources; increasing levels of internal and external violence, such as war or invasion; and societal responses to internal and environmental problems.
• Peter Turchin in his Historical Dynamics and Andrey Korotayev et al. in their Introduction to Social Macrodynamics, Secular Cycles, and Millennial Trends suggest a number of mathematical models describing collapse of agrarian civilizations. For example, the basic logic of Turchin's "fiscal-demographic" model can be outlined as follows: during the initial phase of a sociodemographic cycle we observe relatively high levels of per capita production and consumption, which leads not only to relatively high population growth rates, but also to relatively high rates of surplus production. As a result, during this phase the population can afford to pay taxes without great problems, the taxes are quite easily collectible, and the population growth is accompanied by the growth of state revenues. During the intermediate phase, the increasing overpopulation leads to the decrease of per capita production and consumption levels, it becomes more and more difficult to collect taxes, and state revenues stop growing, whereas the state expenditures grow due to the growth of the population controlled by the state. As a result, during this phase the state starts experiencing considerable fiscal problems. During the final pre-collapse phases the overpopulation leads to further decrease of per capita production, the surplus production further decreases, state revenues shrink, but the state needs more and more resources to control the growing (though with lower and lower rates) population. Eventually this leads to famines, epidemics, state breakdown, and demographic and civilization collapse (Peter Turchin. Historical Dynamics. Princeton University Press, 2003:121–127).
• Peter Heather argues in his book The Fall of the Roman Empire: a New History of Rome and the Barbarians^[31] that this civilization did not end for moral or economic reasons, but because centuries of contact with barbarians across the frontier generated its own nemesis by making them a much more sophisticated and dangerous adversary. The fact that Rome needed to generate ever greater revenues to equip and re-equip armies that were for the first time repeatedly defeated in the field, led to the dismemberment of the Empire. Although this argument is specific to Rome, it can also be applied to the Asiatic Empire of the Egyptians, to the Han and Tang dynasties of China, to the Muslim Abbasid Caliphate, and others.
• Bryan Ward-Perkins, in his book The Fall of Rome and the End of Civilization,^[32] shows the real horrors associated with the collapse of a civilization for the people who suffer its effects, unlike many revisionist historians who downplay this. The collapse of complex society meant that even basic plumbing disappeared from the continent for 1,000 years. Similar Dark Age collapses are seen with the Late Bronze Age collapse in the Eastern Mediterranean, the collapse of the Maya, on Easter Island and elsewhere.
• Arthur Demarest argues in Ancient Maya: The Rise and Fall of a Rainforest Civilization,^[33] using a holistic perspective to the most recent evidence from archaeology, paleoecology, and epigraphy, that no one explanation is sufficient but that a series of erratic, complex events, including loss of soil fertility, drought and rising levels of internal and external violence led to the disintegration of the courts of Mayan kingdoms which began a spiral of decline and decay. He argues that the collapse of the Maya has lessons for civilization today.
• Jeffrey A. McNeely has recently suggested that "A review of historical evidence shows that past civilizations have tended to over-exploit their forests, and that such abuse of important resources has been a significant factor in the decline of the over-exploiting society."^[34]
• Thomas Homer-Dixon in "The Upside of Down: Catastrophe, Creativity, and the Renewal of Civilization", considers that the fall in the energy return on investments; the energy expended to energy yield ratio, is central to limiting the survival of civilizations. The degree of social complexity is associated strongly, he suggests, with the amount of disposable energy environmental, economic and technological systems allow. When this amount decreases civilizations either have to access new energy sources or they will collapse....

History[link]

Early civilizations[link]

Map of the world showing approximate centers of origin of agriculture and its spread in prehistory: the Fertile Crescent (11,000 BP), the Yangtze and Yellow River basins (9000 BP) and the New Guinea Highlands (9000–6000 BP), Central Mexico (5000–4000 BP), Northern South America (5000–4000 BP), sub-Saharan Africa (5000–4000 BP, exact location unknown), eastern USA (4000–3000 BP).^[35]

The process of sedentarization is first thought to have occurred around 12,000 BCE in the Levant region of southwest Asia though other regions around the world soon followed. The emergence of civilization is generally associated with the Neolithic, or Agricultural Revolution, which occurred in various locations between 8,000 and 5,000 BCE, specifically in southwestern/southern Asia, northern/central Africa and Central America.^[36] This revolution marked the beginning of stable agriculture and animal domestication which enabled economies and cities to develop.

The following articles discuss the development of major early civilizations.

• Old Stone Age
• New Stone Age
• Bronze Age India
  • Indus Valley Civilization
• Ancient Near East
  • Mesopotamia
  • Levant / Canaan
  • Bronze Age Anatolia / Aegean
• Bronze Age Europe
• Bronze Age China

• Africa
  • Ancient Egypt
  • Ancient Somalia
  • Kush
  • Axum

• Pre-Columbian Americas
  • Norte Chico / Caral
  • Olmec
  • Zapotec civilization

Antiquity (Axial Age)[link]

Karl Jaspers, the German historical philosopher, proposed that the ancient civilizations were affected greatly by an Axial Age in the period between 800 BCE–200 BCE during which a series of male sages, prophets, religious reformers and philosophers, from China, India, Iran, Israel and Greece, changed the direction of civilizations.^[37] William H. McNeill proposed that this period of history was one in which culture contact between previously separate civilizations saw the "closure of the oecumene", and led to accelerated social change from China to the Mediterranean, associated with the spread of coinage, larger empires and new religions. This view has recently been championed by Christopher Chase-Dunn and other world systems theorists.

• Mediterranean civilizations of the Classical Period
  • Ancient Greece
  • Ancient Rome
  • Hellenistic civilization
• Middle East
  • Persia since the Achaemenids
  • Second Temple Judaism
• Ancient India
• Ancient China (Qin Dynasty, Han Dynasty)
• Ancient Nomads (Xiongnu, Huns, Kok Turk Empire)

Medieval to Early Modern[link]

• Christendom
  • Western Christianity
  • Eastern Christianity
• Islamic World
  • Islamic Golden Age
  • Caliphate
  • Somalia
    • Adal Sultanate
    • Ajuuraan Empire
    • Warsangali Empire
  • Mongol-Turkish (Ilkhanate, Timurid Empire)
  • Mughal India
  • Ottoman Empire
• Asia
  • Chola Empire, India
  • Pandya Empire, India
  • Chera Kingdom, India
  • Pallava Kingdom, India
  • Tang China
  • Goryeo Korea
  • Mongol Empire (Yuan)
  • Ming China
  • Feudal Japan
  • Confucian Vietnam
• South East Asia
  • Funan, Chenla, Champa, Anghor Cambodia
  • Dvaravati, Hariphunchai, Sukhothai, Ayutthaya Kingdom, pre Modern Thailand
  • Pagan Burma
  • Chola, Pallava, Sri Vijaya, Sailendra, Mataram and Majapahit

• Mesomerican civilizations
  • Toltec
  • Aztec civilization
  • Maya civilization

• Andean civilizations
  • Chimor
  • Kingdom of Cusco/Inca Empire
  • Aymara

• African civilizations
  • Wagadou
  • Mali Empire
  • Songhai Empire
  • Abyssinia
  • Benin Empire

Contemporary[link]

• Western World
  • Europe
  • the Americas
    • Latin America
    • Anglosphere
  • Eastern Orthodox Church countries
    • Greece
    • Russia
    • Southeast Europe
    • Ukraine
    • Belarus
  • Australia
• Islamic world
  • Arab world
  • Middle East
    • Turkey (in transition from the Islamic World to the Western World)
  • North Africa
  • Somalia
• Eastern world / Far East
  • East Asia
    • Sinosphere
    • Nomadic (Altaic)
  • South Asia
  • Southeast Asia
• Sub-Saharan Africa
  • • South Africa (to the Western World)

See also[link]

• Anarcho-primitivism
• Barbarian
• Civilized core
• Cradle of civilization
• Culture
  • Outline of culture
• History of the world
• Human population
• Intermediate Region
• Kardashev scale
• Mission civilisatrice
• Muslim world
• Proto-civilization
• Sedentism
• Western civilization

Notes[link]

References[link]