This kingdom's wealth was largely based on its position on the trade routes to the Fezzan from (*) Lake Chad.
This kingdom frequently fought with the cities of the Sao culture, which was supposedly toppled by "Yemenites". King Hummay brought Islam to this kingdom and founded its longest reigning dynasty. The fall of the Sefuwa Dynasty of this kingdom nearly led to the destruction of all copies of this kingdom's most important historical work, the Girgam, but Heinrich Barth's possession of two copies preserved it for posterity. This kingdom's 14th century conflict with the Bulala people prompted it to move its capital from Njimi to Ngazargamu and change its name. This kingdom's wealth was largely based on its position on the trade routes to the Fezzan from (*) Lake Chad. For 10 points, identify this Central African kingdom most famously ruled by Idris Alooma.
This kingdom frequently fought with the cities of the Sao culture, which was supposedly toppled by "Yemenites".
Kanem-Bornu Empire (accept Kanem, Bornu, or both as the names essentially refer to different periods/geographical locations of the same kingdom)