The Sao were an African civilisation that flourished from ca. the sixth century BCE to as late as the sixteenth century CE. The Sao lived by the Chari River south of Lake Chad in territory that later became part of Cameroon and Chad. They are the earliest people to have left clear traces of their presence in the territory of modern Cameroon.[1] They may have originated in the ancient Near East, in the Nile valley, or near Lake Chad. 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 Kotoko claim descent from the civilisation of the Sao.
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There are several theories concerning the origin of the Sao. Archaeologists J.-P. Lebeuf and A. Masson-Détourbet suggest that the civilisation characterized by city-states may have been influenced by the advanced Nubian civilisation of the Nile.[2] According to the historian Dierk Lange, the Sao were immigrants from the ancient Near East in consequence of the fall of the Assyrian Empire at the end of the seventh century BC.[3] Victor Fanso believes that the Sao were the descendants of the Hyksos who conquered Ancient Egypt in the sixteenth century BCE who may have moved southwest from the Nile valley into middle Africa in several waves under pressure from Arab invaders.[4] A fourth theory claims that the Sao were simply the indigenous inhabitants of the Lake Chad basin and that their ultimate origins lie south of the lake.[5]
The Sao civilisation may have begun as early as the sixth century BCE,[6] and by the end of the first millennium BCE, their presence was well established south of Lake Chad and near the Chari River.[7] The city states of the Sao reached their apex sometime between the ninth and fifteenth centuries CE.[7]
The Sao's demise may have come about due to conquest, Islamization, or both.[8] Traditional tales say that the Sao west of Lake Chad fell to "Yemenites" from the east. These invaders made several unsuccessful attempts to conquer the Sao before finally succeeding by resorting to trickery. If true, the newcomers may have been Arab Bedouin or Sayfuwa raiders coming from the east who moved into the region in the fourteenth century .[9] 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.[10] The Kotoko are the inheritors of the former city states of the Sao.[11]
Little is known about the Sao's culture or political organisation: They left no written records and are known only through archaeological finds and the oral history of their successors in their territory.[5] Sao artefacts show that they were skilled workers in bronze, copper, and iron.[8] Finds include bronze sculptures and terra cotta statues of human and animal figures, coins, funerary urns, household utensils, jewellery, highly decorated pottery, and spears.[12] The largest Sao archaeological finds have been made south of Lake Chad.
Ethnic groups in the Lake Chad basin, such as the Buduma, Gamergu, Kanembu, Kotoko, and Musgum claim descent from the Sao. Lebeuf supports this connection and has traced symbolism from Sao art in works by the Guti and Tukuri subgroups of the Logone-Birni people.[13] Oral histories add further details about the people: The Sao were made up of several patrilineal clans who were united into a single polity with one language, race, and religion. In these narratives, the Sao are presented as giants and mighty warriors who fought and conquered their neighbors.[5]