Oyo Empire could act as a buffer between Oyo and Imperial Benin. By the end of the 16th century, the Ewe and Aja states of modern Benin were paying tribute to Oyo. The reinvigorated Oyo Empire began raiding southward as early as 1682. By the end of its military expansion, Oyo's borders would reach to the coast some southwest of its capital. It met little serious opposition until the early 18th century. In 1728, the Oyo Empire invaded the Kingdom of Dahomey in a major campaign of its cavalry. Dahomey warriors, on the other hand, had no cavalry but many firearms. Their
Yoruba people origin of human civilization, remains intact to this day. The urban phase of Ile-Ife before the rise of Oyo, c. 1100–1600, a significant peak of political centralization in the 12th century) is commonly described as a "golden age" of Ile-Ife. The oba or ruler of Ile-Ife is referred to as the Ooni of Ife. Ife continues to be seen as the "Spiritual Homeland" of the Yoruba. The city was surpassed by the Oyo Empire as the dominant Yoruba military and political power in the 17th century. The Oyo Empire under its oba, known as the Alaafin of Oyo, was active