History of the Yoruba people military capital of Ilorin, and then sacked and destroyed Ọyọ-Ile, the royal seat of the Ọyọ Empire. Following this, Ọyọ-Ile was abandoned, and the Ọyọ retreated south to the present city of Oyo (formerly known as "Ago d'Oyo", or "Oyo Atiba") in a forested region where the cavalry of the Sokoto Caliphate was less effective. Further attempts by the Sokoto Caliphate to expand southwards were checked by the Yoruba who had rallied in defence under the military leadership of the ascendant Ibadan clan, which rose from the old Oyo Empire, and of the Ijebu city-states. However, the Oyo hegemony had
Yoruba people 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 number of native speakers.