History of Africa usually governed by an "oba" and an "iwarefa", a council of chiefs who advised the "oba." by the 18th century, the Yoruba city-states formed a loose confederation, with the "Oni" of Ife as the head and Ife as the capital. As time went on, the individual city-states became more powerful with their "obas" assuming more powerful spiritual positions and diluting the authority of the "Oni" of Ife. Rivalry became intense among the city-states. The Oyo Empire rose in the 16th century. The Oyo state had been conquered in 1550 by the kingdom of Nupe, which was in possession of cavalry,
Yoruba Academy Yoruba Academy The Yoruba Academy is a multi-disciplinary institution that brings together scholars, politicians, businessemen and experts in Yoruba language, culture, economics, law, science and technology, and governance. It was founded in Ibadan, Oyo State, Nigeria in October 2007 following a retreat of young Yoruba professionals, and it is currently operated by the Afenifere Renewal Group. Its main mission is to ensure the preservation of the Yoruba language, as well as the socio-cultural and economic development of the Yoruba peoples worldwide, that is both in its South-West homeland in Nigeria and in the Diaspora. In its language mission, a dictionary