The Sao civilization (also called So) flourished in

Central Africa Central Africa is a subregion of the African continent comprising various countries according to different definitions. Angola, Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, the Republic of the Congo, E ...

from ca. the fourth or sixth century BC to as late as the sixteenth century AD. The Sao lived by the

Chari River The Chari River, or Shari River, is a long river, flowing in Central Africa. It is Lake Chad's main source of water. Geography The Chari River flows from the Central African Republic through Chad into Lake Chad, following the Cameroon border f ...

basin in territory that later became part of

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west- central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; th ...

and

Chad Chad (; ar, تشاد , ; french: Tchad, ), officially the Republic of Chad, '; ) is a landlocked country at the crossroads of North and Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Repub ...

. They are the earliest civilization to have left clear traces of their presence in the territory of modern Cameroon. Sometime around the 16th century, conversion to Islam changed the cultural identity of the former Sao. Today, several ethnic groups of northern Cameroon and southern Chad, but particularly the Sara, Kotoko, claim descent from the civilization of the Sao.

Origins

The Sao civilization began as early as the sixth or fourth century BCE, and by the end of the first millennium BCE, their presence was well established around Lake Chad and near the

. The city-states of the Sao reached their apex sometime between the ninth and fifteenth centuries CE. Although some scholars estimate that the Sao civilization south of Lake Chad lasted until the fourteenth or fifteenth century, the majority opinion is that it ceased to exist as a separate culture sometime in the 16th century subsequently to the expansion of the

Bornu Empire Bornu may refer to: * Bornu Empire, a historical state of West Africa * Borno State, Nigeria {{disambig