Kanem-Bornu Empire Power Reorganization in the 1490s and Ali Gaji's Reforms

Timeline

1. 1490–1496Lake Chad Basin · Lake Chad BasinIn the mid-to-late 15th century the Kanem-Bornu Empire under the Sayfawa Mai rulers experienced tensions between the old capital of Kanem and southern Bornu forces. In the early 1490s central authority weakened, and local strongmen and court factions contested the succession, laying the groundwork for the 1497 change of power.
2. c. 1497Bornu · BornuAli Gaji Dunuamami staged a coup, overthrew the reigning Mai, and declared himself Mai. He claimed to restore Sayfawa legitimacy and set about permanently shifting the empire's power base from old Kanem to Bornu, in response to nomadic pressure from the east and internal centrifugal forces.
3. 1497–1499Ngazargamu · BornuAli Gaji established a new capital, Ngazargamu, in Bornu, integrating rule over both Kanem and Bornu, instituting taxation and judicial systems modeled on Islamic law, and controlling trans-Saharan trade routes. The reorganization of the late 1490s laid the foundation for the expansion of the Bornu Empire in the 16th-17th centuries.