Historical synthesis II
•This would have been followed by the expansion first of West Chadic (2-3000 years ago) and then the secondary expansion of Hausa (? 1000 years ago) further breaking up the Kainji and Plateau populations and pressing  Adamawa languages southwards
•At the same time there would have been a secondary expansion of Kanuri cluster languages from north of Lake Chad
•Shuwa Arabs are likely to begin incursions into NE Nigeria in the 13th century
•And sometime around this period the Jarawan Bantu migrations begin
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