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Other etymological hypotheses have been postulated for the ancient name "Africa": During the mid-20th century, anthropologists discovered many fossils and evidence of human occupation perhaps as early as 7 million years ago (BP=before present).
Fossil remains of several species of early apelike humans thought to have evolved into modern man, such as Australopithecus afarensis (radiometrically dated to approximately 3.9–3.0 million years BP, These first modern humans left Africa and populated the rest of the globe during the Out of Africa II migration dated to approximately 50,000 years BP, exiting the continent either across Bab-el-Mandeb over the Red Sea, Other migrations of modern humans within the African continent have been dated to that time, with evidence of early human settlement found in Southern Africa, Southeast Africa, North Africa, and the Sahara.
This climate change caused lakes and rivers to shrink significantly and caused increasing desertification.
This, in turn, decreased the amount of land conducive to settlements and helped to cause migrations of farming communities to the more tropical climate of West Africa.
However, the warming and drying climate meant that by 5000 BC, the Sahara region was becoming increasingly dry and hostile.
In the early 7th century, the newly formed Arabian Islamic Caliphate expanded into Egypt, and then into North Africa.
In a short while, the local Berber elite had been integrated into Muslim Arab tribes.
people as of 2016, it accounts for about 16% of the world's human population.
The continent is surrounded by the Mediterranean Sea to the north, both the Suez Canal and the Red Sea along the Sinai Peninsula to the northeast, the Indian Ocean to the southeast and the Atlantic Ocean to the west.