French capture of Zinder, 1899

Background. The Sultanate of Damagaram, centered on Zinder, was a Muslim state founded in 1731. It initially served as a vassal to the decaying Bornu empire but eventually conquered its fellow vassal states. The state sat astride major trade routes linking Tripoli to Kano, providing economic stability. By the 1890s, Zinder was the only city in modern Niger with a population exceeding 10,000, making it a significant target for French expansion.

French Arrival and Occupation. French exploration in the region began in the 19th century, notably with Heinrich Barth in 1851 and Marius Gabriel Cazemajou, who was killed in Zinder in 1897. In 1898, a French force spent three weeks under the Sultan's protection. The reconstituted Voulet-Chanoine Mission arrived in Damagaram in 1899 to avenge Cazemajou's death. The city was occupied in July 1899 after a brief resistance, marking the end of the Sultanate's independence.

Political Transition. The brother of Sultan Ahmadou mai Roumji had earlier sided with the French, and was placed on the throne in 1899 as Sultan Ahamadou dan Bassa. The passages do not state the circumstances under which the previous ruler left the throne, so the transition's immediate cause remains unverified. Zinder later served as the capital of the Niger Military Territory upon its creation in 1911.