Ibadan ( or fully (Ìlú) Ẹ̀bá-Ọ̀dàn, (the city at) the edge of the savannah) is the capital city of Oyo State and the third largest metropolitan area, by population, in Nigeria, after Lagos and Kano, with a population of over 3 million, and the largest metropolitan geographical area. At Nigerian independence, Ibadan was the largest and most populous city in the country and the third in Africa after Cairo and Johannesburg.