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.
Kisi, Oyo Kisi, Oyo Kisi (or Kishi) is a large town in Oyo State, Nigeria. It is the headquarters of the Irepo Local Government Area. Kisi is located at the northern part of Oyo state and is the headquarters of Irepo local government. Kisi is an extension of old Oyo-Ile which was collapsed in the 18th century as a result of Jihad activity by the Hausa/Fulani of Ilorin, Kwara state. Kisi is about 250km from Ibadan, the capital city of Oyo state, and about 150km from Oyo Alafin. The town has an official post office. Historically, different tribes such as the Baruba,