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 amala (yam flour). The ethnic group also holds musical and cultural festivals. The Yoruba eventually established a federation of city-states under the political ascendancy of the city state of Oyo, located on the Northern fringes of Yorubaland in the savanna plains between the forests of present Southwest Nigeria and the Niger River. Following a Jihad led by Uthman Dan Fodio and a rapid consolidation of the Hausa city states of contemporary northern Nigeria, the Fulani Sokoto Caliphate invaded and annexed the buffer Nupe Kingdom. It then began to advance southwards into Ọyọ lands. Shortly afterwards, its armies overran the Yoruba