West Africa sway not only over most of the other kingdoms in Yorubaland, but also over nearby African states, notably the Fon Kingdom of Dahomey in the modern Republic of Benin to the west. The Benin Empire was a pre-colonial empire located in what is now southern Nigeria. Its capital was Edo, now known as Benin City, Edo. It should not be confused with the modern-day country called Benin, formerly called Dahomey. The Benin Empire was "one of the oldest and most highly developed states in the coastal hinterland of West Africa, dating perhaps to the eleventh century CE". The Benin Empire
Dahomey to the Oyo Empire. The Kingdom of Dahomey was an important regional power that had an organized domestic economy built on conquest and slave labor, significant international trade with Europeans, a centralized administration, taxation systems, and an organized military. Notable in the kingdom were significant artwork, an all-female military unit called the Dahomey Amazons by European observers, and the elaborate religious practices of Vodun with the large festival of the Annual Customs of Dahomey. They traded prisoners, which they captured during wars and raids, and exchanged them with Europeans for goods such as knives, bayonets, firearms, fabrics, and spirits. The