Oyo Empire culture in Oyo where victory was obligatory and defeat carried the duty of committing suicide. This do-or-die policy no doubt contributed to the military aggressiveness of Oyo's generals. The Oyo Empire was the only Yoruba state to adopt cavalry; it did so because most of its territory was in the northern savannah. The origin of the cavalry is disputed; however, the Nupe, Borgu and Hausa in neighboring territories also used cavalry and may have had the same historical source. Oyo was able to purchase horses from the north and maintain them in metropolitan Oyo because of partial freedom from the
Yoruba Academy will be maintained by the Academy to set a standard for the Yoruba language. South-West Yoruba in Nigeria: Ekiti State, Lagos State, Ogun State, Oyo State, Osun State, Ondo State, parts of Kwara State, Kogi State, Edo State, Delta State and Niger State Diaspora Yoruba outside Nigeria in Africa: in Togo, Benin, Sierra Leone and parts of Ghana Diaspora Yoruba outside Africa: in Haiti, Cuba, Puerto Rico, Brazil, United States, UK, [(Ireland)] 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.