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
Islam in Nigeria built in Ọyọ-Ile in AD 1550 although, there were no Yoruba Muslims, the Mosque only served the spiritual needs of foreign Muslims living in Ọyọ. Progressively, Islam came to Yoruba land, and Muslims started building Mosques: Iwo town led, its first Mosque built in 1655 followed by Iṣẹyin, in 1760; Lagos, 1774; Ṣaki, 1790; and Oṣogbo, 1889. In time, Islam spread to other towns like Oyo (the first Oyo convert was Solagberu), Ibadan, Abẹokuta, Ijẹbu-Ode, Ikirun, and Ẹdẹ before the 18th century Sokoto jihad. Several factors contributed to the rise of Islam in Yoruba land by mid 19th century. Before