An intensive archaeological field research programme conducted between 1963 and 1969 in the Lake Chad region of Nigeria has established the outlines of a prehistoric chronological sequence for the area. The excavations at Daima form the key to this sequence which also includes excavated evidence from Bornu 38, Kursakata, Shilma, Yau, Ajere and Birnin Gazargamo together with surface information from 70 other sites. Twenty radiocarbon dates indicate settlement of the area from the end of the second millennium B.C. (or the last quarter of the second millennium if the dates are corrected to calendar years) to the sixteenth or seventeenth century A.D. Evidence of occupation earlier than the second millennium B.C. may have to be sought in the highlands south of the lake area.In the firki clay plains, south of the lake, it may be possible to trace the evolution of a Late Stone Age pastoralist economy into an Iron Age cereal cultivator economy. In the undulating sandy country, west of the lake, village settlements focused around the Yobe River seem to have developed, in response to external stimulus, the urban civilization which historical sources indicate at Birnin Gazargamo by the sixteenth century A.D. The contrasting environments designated ‘Firki’ and ‘Yobe’ had an important influence on the character of human settlement indicated by the archaeological evidence.It is suggested that the prehistory of this region merits far greater attention than it has yet received and that the presence in this area of settlement mounds, with substantial depths of deposit, offers a wonderful opportunity for large-scale excavation programmes. Further surface investigations would also be justified, however, as the writer suspects that more prehistoric sites remain to be located in the area.

Excavations and fieldwork in and around Benin City in the years 1961–4 have established the outlines of an archaeological sequence. This sequence is based on radiocarbon dates for stratified deposits, on a statistical examination of pottery form and decoration, and on datable European imports. The sequence suggested by the evidence extends from about the thirteenth century A.D. to the present time, although the survival of locally found ground stone axes in Benin ritual indicates that the area may well have been inhabited since Late Stone Age times. There is evidence for the artistic use of copper and its alloys from at least the thirteenth century onwards, but it is not known how long it had already been in use. Smithed and chased tin bronzes were found in a thirteenth-century context, whereas cast leaded brass was found in use in a nineteenth-century context. There is little evidence for lost-wax casting in Benin in early times. The writer suggests that future archaeological work should make the origins and early development of the city a priority.

Excavations at the salt-making village of Kibiro, on the Ugandan shore of Lake Albert in East Africa, suggest that an important part of the economy of the Kingdom of Bunyoro originated early in the present millennium. The predominance of roulette-decorated pottery, in particular the use of carved roulettes, indicates that Kibiro was first occupied by people with northern affinities, possibly from the upper Nile region or further west. Collectively, these findings provide important clues concerning the origins of the Kingdom of Bunyoro.

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