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
History of the Yoruba people to earth. They became popular with their trading with the Portuguese, which gave them guns for their trade. The Yoruba people were invaded by the Fulani which pushed the people to the South. In the late 1800's, they formed a treaty with the Fulani people and were colonized with the British in 1901. The people who lived in Yorubaland, at least by the seventh century BC, were not initially known as the Yoruba, although they shared a common ethnicity and language group. The historical Yoruba develop "in situ", out of earlier (Mesolithic) Volta-Niger populations, by the 1st millennium BC. Archaeologically,