We have by now over a hundred radiocarbon dates from our various sites. The majority – about three quarters – date to between 500 and 1300 AD, which appears to be a key period for the settlement of the area. However, we have inklings of earlier occupation, too. Until now, indications for this early phase, of the first millennium BC, came just from one site, Alibori Site 2, excavated by Didier N’D in 2014: as its name indicates this was close to the Alibori river, and not too far from Birnin Lafiya. There, two samples from Trench III (below) indicated occupation sometimes between the eighth and fifth centuries BC.
Now, with some new radiocarbon dates just received, we have confirmation of another early occupation, nearly 3000 years old, at a site called Kozungu, on a mound just outside modern Birni Lafia (photo below). It was visited by the architects and ethnographers in our team, then subjected to test pitting by Ali LS, Nicolas N and Daouda A.
These excavators had suspected there was an early occupation at this place, based on a discontinuity in the stratigraphy. That impression was confirmed later, during pottery analysis, when we found that the material from the lower part of the trench looked really different.
Now we can suggest thanks to the radiocarbon dates that people apparently lived at Kozungu 3000 years ago then the site was abandoned and reoccupied at a much later date (13th century AD).
It’s a nice result because it sheds a bit more light on the earlier inhabitants of Dendi, who preceded the people building pavements and using huge numbers of pots and who for that reason are much easier to spot in the archaeological record.