Question

The gagara boats used to cross this body of water were replaced by Idris Alooma, according to a history by ibn Furtu. The Duguwa dynasty established the city of Njimi near this body of water, which was governed by rulers called mais ("MY-ees"). Heinrich Barth publicized a history of a Kanuri-speaking empire based on this body of water, the Girgam. Usman dan Fodio's (*) Sokoto (0[1])Caliphate conquered states near this body of water as part of his Fulani Jihad. The empires of Kanem and Bornu surrounded this body of water. Though a "mega" version of this body of water formed during the African Humid Period, climate change has reduced its surface area. (10[1])For 10 points, name this lake that is the namesake (10[1])of a Central African country. ■END■ (0[1])

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