カネム・ボルヌ帝国
The Lake Chad region was integrated into the political realm of the Kanem-Bornu Empire. During this time (specifically around the 9th to 16th centuries), many ethnic groups in the area assimilated or merged in consequence of the new political power in the region. However, some communities stayed distinct and detached from the central government. This included the Buduma who established themselves in the remote islands and northern shores of Lake Chad.