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.
History of the Yoruba people the settlement at Ile-Ife can be dated to the 4th century BC, with urban structures appearing in the 12th century (the urban phase of Ile-Ife before the rise of Oyo, ca. 1100-1600, is sometimes described as a "golden age" of Ile-Ife). Ife was surpassed by the Oyo Empire as the dominant Yoruba military and political power between 1600 and 1800 AD. The nearby kingdom of Benin was also a powerful force between 1300 and 1850. The Oyo was developed in the 17th century and become one of the largest Yoruba kingdoms, while Ile-Ife remained as a religious significance at the