Oyo Empire gunshots scared the Oyo cavalry horses and prevented their charging. Dahomey's army also built fortifications such as trenches, which forced the Oyo army to fight as infantry. The battle lasted four days, but the Yoruba were eventually victorious after reinforcements arrived. Dahomey was forced to pay tribute to Oyo. The Yoruba invaded Dahomey seven times before finally subjugating the small kingdom in 1748. With its cavalry, Oyo campaigned successfully in conquest and suppression over great distances. The Oyo army was able to attack defensive fortifications, but it was harder to supply an army, and they withdrew when supplies ran out.
Yoruba people Venezuela, Saint Lucia, Jamaica, Brazil, Grenada, and Trinidad and Tobago, and other countries. As an ethnic description, the word "Yoruba" (or more correctly, "Ya raba") was originally in reference to the Oyo Empire and is the usual Hausa name for Oyo people as noted by Hugh Clapperton and Richard Lander. It was therefore popularized by Hausa usage and ethnography written in Ajami during the 19th century by Sultan Muhammad Bello. The extension of the term to all speakers of dialects related to the language of the Oyo (in modern terminology North-West Yoruba) dates to the second half of the 19th