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,
History of the Yoruba people the settlement at Ile-Ife can be dated to the 4th century BC, with urban structures appearing in the 12th century (the urban phase of Ile-Ife before the rise of Oyo, ca. 1100-1600, is sometimes described as a "golden age" of Ile-Ife). Ife was surpassed by the Oyo Empire as the dominant Yoruba military and political power between 1600 and 1800 AD. The nearby kingdom of Benin was also a powerful force between 1300 and 1850. The Oyo was developed in the 17th century and become one of the largest Yoruba kingdoms, while Ile-Ife remained as a religious significance at the