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.
Shaki, Oyo Shaki, Oyo Shaki (also Saki) is a town situated in the northern part of Oyo State in western Nigeria. The terrain is hilly. The town lies near the source of the Ofiki River, the chief tributary of the Ogun River, about 40 miles (60 km) from the Benin border. It is referred to as the food basket of Oyo State because of its agricultural activities. It is the headquarters of Saki West local government authority. Originally part of the Oyo Empire, Shaki became a Yoruba refugee settlement after the destruction in 1835 of Old Oyo (Katunga), 70 miles (113 km)