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,
Yoruba tribal marks unique to the indigenes of Oyo, Nigeria. The Abaja style of Yoruba tribal mark was inscribed on the cheeks of Lamidi Adeyemi III, the Alaafin of Oyo. The use of tribal marks as a means of identification and beautification among the Yoruba tribe is no longer a norm and some Yoruba states have enacted certain laws that prohibit the use of the marks. Violators of the law are liable to fines or imprisonment (or both). In Oyo State, for example, the prohibition of tribal marks is an integral part of the state Child Rights Law, a law that imposes a