Oyo Empire 17th century, Oyo began a long stretch of growth, becoming a major empire. Oyo never encompassed all Yoruba-speaking people, but it was the most populous kingdom in Yoruba history. The key to Yoruba rebuilding of Oyo was a stronger military and a more centralized government. Taking a cue from their Nupe enemies (whom they called "Tapa"), the Yoruba rearmed with armor and cavalry. Oba Ofinran, Alaafin of Oyo, succeeded in regaining Oyo's original territory from the Nupe. A new capital, Oyo-Igboho, was constructed, and the original became known as Old Oyo. The next oba, Eguguojo, conquered nearly all of Yorubaland.
Yoruba people by a significant proportion of the populations of Nigeria, Benin and Togo. The Yoruba faith, variously known as Aborisha, Orisha-Ifa or simply (and erroneously) Ifa, is commonly seen as one of the principal components of the African traditional religions. Orisa'nla, also known as Ọbatala, was the arch-divinity chosen by Olodumare, the Supreme God, to create solid land out of the primordial water that then constituted the earth and populating the land with human beings molded out of clay. The Yorùbá religion comprises the traditional religious and spiritual concepts and practices of the Yoruba people. Its homeland is in Southwestern Nigeria