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 people "Basal Human" (BE) admixture. Yoruba people The Yorùbá people (name spelled also: Ioruba or Joruba; ) are a Niger-Congo ethnic group of southwestern and north-central Nigeria, as well as southern and central Benin. Together, these regions are known as Yorubaland. The Yoruba constitute about 44 million people in total. Majority of this population is from Nigeria, where the Yorùbá make up 21% of the country's population, according to the "CIA World Factbook", making them one of the largest ethnic groups in Africa. Most Yoruba people speak the Yoruba language, which is tonal, and is the Niger-Congo language with the largest