Lake Chad’s long empire kept shifting its capital southward
Historians braid Duguwa, Sayfawa, and al-Kanemi realms around Lake Chad into the Kanem–Bornu story, a trans-Saharan power touching lands now in Nigeria, Niger, Cameroon, Libya, Algeria, Sudan, and Chad. Tradition places a founding near 700, though earlier and later guesses compete.
Kanem–Bornu is a name historians invented to cover one state across three ruling houses, the Duguwa, Sayfawa and al-Kanemi. Contemporaries never used it. It glues together the empire's two successive heartlands, Kanem in today's Chad and Bornu in today's Nigeria, even though the state seldom held both directly at once. Kanem may come from anem, still the word for south in Teda and Kanuri; Arabic writers of the ninth to eleventh centuries called it Kānem or the kingdom of the Zaghāwa. Bornu appears only from the fourteenth century, and Borno is the spelling closer to Kanuri pronunciation.
Its beginnings are murky, with a founding around 700 the usual guess. The Duguwa ruled from Njimi in Kanem under the title mai. In the eleventh century the empire adopted Islam and the Sayfawa replaced the Duguwa, and in the thirteenth century mai Dunama II Dibalemi took Kanem to its height. The state controlled Saharan routes and sold salt, ivory, slaves and animal goods, with salt supplying much of the surrounding region.
Economic trouble and war with the Bilala cost it Kanem in the fourteenth century. Mai Umar I Idrismi moved the centre to Bornu, once a tributary, and after a century of turmoil mai Ali I Gaji built Ngazargamu as a lasting capital. Idris III Katagarmabe later won Kanem back, and Bornu peaked under Idris IV Alooma in the late sixteenth century. From the seventeenth century a slow decline set in as trade patterns, climate and neighbours all turned against it.
The Fula jihads of the early nineteenth century nearly destroyed it, shifting regional power west to the Sokoto Caliphate, and the al-Kanemi dynasty, ruling as shehu, displaced the Sayfawa. In 1893 the Sudanese warlord Rabih az-Zubayr conquered the state and ran it as a harsh military regime. France and Britain exploited the chaos; the al-Kanemi were restored in 1900 under colonial oversight, and by 1902 the land was split among France, Britain and Germany. The Borno and Dikwa emirates in Nigeria's Borno State survive as its traditional heirs.
Source: Kanem–Bornu Empire
