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,
History of the Yoruba people History of the Yoruba people The documented history of the Yoruba people begins with the Oyo Empire, which became dominant in the early 17th century. The older traditions of the formerly dominant Ile-Ife kingdom are largely oral in nature. The history of the Yoruba People was originated in the oldest town Ile-Ife and was founded by the deities Oduduwa and Obatala who created the world. Oduduwa was the first divine king of the Yoruba people and Obatala fashioned the first humans out of clay. It is said the Yoruba people believe their civilization began at Ile-Ife where the gods descended