Sub-Saharan Africa


Sub-Saharan Africa is the area and regions of the continent of Africa that lie south of the Sahara. These include Central Africa, East Africa, Southern Africa, and West Africa. Geopolitically, in addition to the African countries and territories that are situated fully in that specified region, the term may also include polities that only have part of their territory located in that region, per the definition of the United Nations. This is considered a non-standardised geographical region with the number of countries included varying from 46 to 48 depending on the organisation describing the region. The African Union uses a different regional breakdown, recognising all 55 member states on the continent—grouping them into five distinct and standard regions.
The term serves as a grouping counterpart to North Africa, which is instead grouped with the definition of MENA as it is part of the Arab world, and most North African states are likewise members of the Arab League. However, while they are also member states of the Arab League, the Comoros, Djibouti, Mauritania, and Somalia are all geographically considered to be part of sub-Saharan Africa. Overall, the UN Development Programme applies the "sub-Saharan" classification to 46 of Africa's 55 countries, excluding Djibouti, SADR, Somalia, and Sudan. The concept has been criticised by scholars on both sides of the Sahara.
Since around 3900 BCE, the Saharan and sub-Saharan regions of Africa have been separated by the extremely harsh climate of the sparsely populated Sahara, forming an effective barrier that is interrupted only by the Nile in Sudan, though navigation on the Nile was blocked by the Sudd and the river's cataracts. The Sahara pump theory explains how flora and fauna left Africa to penetrate Eurasia and beyond. African pluvial periods are associated with a "Wet Sahara" phase, during which larger lakes and more rivers existed.

Nomenclature and conceptual criticism

Geographers historically divided the region into several distinct ethnographic sections based on each area's respective inhabitants. The concept of "sub-Saharan Africa" has been criticised as a racist construction intended to separate Africa. Critics from various countries have provided arguments supporting the interconnectedness of continental Africa, pointing to historical and cultural connections, as well as trade between North, West, and East Africa. Another source of criticism has been that traditional racial taxonomy which has arbitrarily divided separated Africa into a white "northern" Africa and black "southern" Africa, has overlooked common genetic links and regional diversity across the continent.
Commentators in Arabic in the medieval period used the general term bilâd as-sûdân for the vast Sudan region, or sometimes extending from the coast of West Africa to Western Sudan. Its equivalent in Southeast Africa was Zanj, which referred primarily to the Swahili coast.
The geographers drew an explicit ethnographic distinction between the Sudan region and its analogue Zanj, from the area to their extreme east on the Red Sea coast in the Horn of Africa. In modern-day Ethiopia and Eritrea was Al-Habash or Abyssinia, which was inhabited by the Habash or Abyssinians, who were the forebears of the Habesha. In northern Somalia was Barbara or the Bilad al-Barbar, which was inhabited by the Eastern Baribah or Barbaroi, as the ancestors of the Somalis were referred to by medieval Arab and ancient Greek geographers, respectively.

Climate zones and ecoregions

Sub-Saharan Africa has a wide variety of climate zones or biomes. South Africa and the Democratic Republic of the Congo in particular are considered megadiverse countries. It has a dry winter season and a wet summer season.

Prehistory

According to paleontology, early hominid skull anatomy was similar to that of their close cousins, the great African forest apes, gorilla and chimpanzee. However, they had adopted a bipedal locomotion and freed hands, giving them a crucial advantage enabling them to live in both forested areas and on the open savanna at a time when Africa was drying up, with savanna encroaching on forested areas. This occurred 10 million to 5 million years ago.
By 3 million years ago several australopithecine hominid species had developed throughout Southern, East, and Central Africa. They were tool users rather than tool manufacturers. The next major evolutionary step occurred around 2.3 million BCE, when primitive stone tools were used to scavenge the carcasses of animals killed by other predators, both for their meat and their marrow. In hunting, H. habilis was most likely not capable of competing with large predators and was more prey than hunter, although H. habilis likely did steal eggs from nests and may have been able to catch small game and weakened larger prey such as cubs and older animals. The tools were classed as Oldowan.
Roughly 1.8 million years ago, Homo ergaster first appeared in the fossil record in Africa. From Homo ergaster, Homo erectus evolved 1.5 million years ago. Some of the earlier representatives of this species were small-brained and used primitive stone tools, much like H. habilis. The brain later grew in size, and H. erectus eventually developed a more complex stone tool technology called the Acheulean. Potentially the first hominid to engage in hunting, H. erectus mastered the art of making fire. They were the first hominids to leave Africa, going on to colonise the entire Old World, and perhaps later on giving rise to Homo floresiensis. Although some recent writers suggest that H. georgicus, a H. habilis descendant, was the first and most primitive hominid to ever live outside Africa, many scientists consider H. georgicus to be an early and primitive member of the H. erectus species.
The fossil and genetic evidence shows Homo sapiens developed in East and Southern Africa by around 350,000 to 260,000 years ago and gradually migrated across the continent in waves. Between 50,000 and 60,000 years ago, their expansion out of Africa launched the colonisation of the planet by modern humans. By 10,000 BCE, Homo sapiens had spread to all corners of the world. This dispersal of the human species is suggested by linguistic, cultural and genetic evidence.
During the 11th millennium BP, pottery was independently invented in West Africa, with the earliest pottery there dating to about 9,400 BC from central Mali. It spread throughout the Sahel and southern Sahara.
After the Sahara became a desert, it did not present a totally impenetrable barrier for travelers between north and south because of the application of animal husbandry towards carrying water, food, and supplies across the desert. Prior to the introduction of the camel, the use of oxen, mule, and horses for desert crossing was common, and trade routes followed chains of oases that were strung across the desert. The trans-saharan trade was in full motion by 500 BCE with Carthage being a major economic force for its establishment. It is thought that the camel was first brought to Egypt after the Persian Empire conquered Egypt in 525 BCE, although large herds did not become common enough in North Africa for camels to be the pack animal of choice for the trans-saharan trade.

West Africa

The Bantu expansion is a major migration movement that originated in West Central Africa around 2500 BCE, reaching East and Central Africa by 1000 BCE and Southern Africa by the early centuries CE.
The Djenné-Djenno city-state flourished from 250 BCE to 900 CE and was influential to the development of the Ghana Empire. The Nok culture of Nigeria is known from a type of terracotta figure. There were a number of medieval empires of the southern Sahara and the Sahel, based on trans-Saharan trade, including the Ghana Empire and the Mali Empire, Songhai Empire, the Kanem Empire and the subsequent Bornu Empire. They built stone structures like in Tichit, but mainly constructed in adobe. The Great Mosque of Djenne is most reflective of Sahelian architecture and is the largest adobe building in the world.
In the forest zone, several states and empires such as Bono State, Akwamu and others emerged. The Ashanti Empire arose in the 18th century in modern-day Ghana. The Kingdom of Nri, was established by the Igbo in the 11th century. Nri was famous for having a priest-king who wielded no military power. Nri was a rare African state which was a haven for freed slaves and outcasts who sought refuge in their territory. Other major states included the kingdoms of Ifẹ and Oyo in the western block of Nigeria which became prominent about 700–900 and 1400 respectively, and center of Yoruba culture. The Yoruba built massive mud walls around their cities, the most famous being Sungbo's Eredo. Another prominent kingdom in southwestern Nigeria was the Kingdom of Benin, whose power lasted between the 15th and 19th century. Their dominance reached as far as the well-known city of Eko which was named Lagos by the Portuguese traders and other early European settlers. The Edo-speaking people of Benin are known for their famous bronze casting and rich coral, wealth, ancient science and technology and the Walls of Benin, one of the longest man-made structures on the world.
In the 18th century, the Oyo and the Aro Confederacy were responsible for most of the slaves exported from modern-day Nigeria, selling them to European slave traders. Following the Napoleonic Wars, the British expanded their influence into the Nigerian interior. In 1885, British claims to a West African sphere of influence received international recognition, and in the following year the Royal Niger Company was chartered under the leadership of Sir George Goldie. In 1900, the company's territory came under the control of the British government, which moved to consolidate its hold over the area of modern Nigeria. On 1 January 1901, Nigeria became a British protectorate as part of the British Empire, the foremost world power at the time. Nigeria was granted its independence in 1960 during the period of decolonization.