History of Nigeria city-states. A state council (the "Oyo Mesi") named the "Alaafin" (king) and acted as a check on his authority. Their capital city was situated about 100 km north of present-day Oyo. Unlike the forest-bound Yoruba kingdoms, Oyo was in the savanna and drew its military strength from its cavalry forces, which established hegemony over the adjacent Nupe and the Borgu kingdoms and thereby developed trade routes farther to the north. The Benin Empire (1440–1897; called "Bini" by locals) was a pre-colonial African state in what is now modern Nigeria. It should not be confused with the modern-day country called Benin,
Ojigi (Oyo) Ojigi (Oyo) Ojigi (also Ojiji) was Alaafin of the Yoruba Oyo Empire in what is now Nigeria from 1724-1735. Alaafin Ojigi's rule began Oyo's "great age of conquest". His reign is also considered the peak of imperial success, and Ojigi enjoyed the strong support of several important chiefs. Ojigi launched four military incursions against the Kingdom of Dahomey after the receiving requests for assistance from other kingdoms who were threatened by Agaja, the Dahomean king. In 1730 the Dahomeans agreed to begin paying an annual tribute of forty men, women, guns, and four hundred loads of cowries and corals to