Benin was the seat of one of the great medieval African kingdoms called Dahomey. Europeans began arriving in the area in the 18th century, as the kingdom of Dahomey was expanding its territory. The Portuguese, the French, and the Dutch established trading posts along the coast (Porto-Novo, Ouidah, Cotonou), and traded weapons for slaves. Slave trade ended in 1848. Then, the French signed treaties with Kings of Abomey (Guézo, Toffa, Glèlè) to establish French protectorates in the main cities and ports. However, King Behanzin fought the French influence which cost him deportation to Martinique. As of 1900, the territory became a French colony ruled by a French Governor. Expansion continued to the North (kingdoms of Parakou, Nikki, Kandi), up to the border with former Upper Volta. On December 4, 1958, it became the République du Dahomey, self-governing within the French community, and on August 1, 1960, the Republic of Benin gained full independence from France.

Some time before 1600 it is thought that the Adja people migrated from the town of Tado on the Mono River (in Togo), settling at Allada, where they mixed with the Fon and founded a kingdom. In the early 17th century a dynastic dispute resulted in the establishment of two rival states at Abomey and Porto-Novo. The first of these grew into the Kingdom of Dahomey, which dominated the area until the 19th century.

As a political unit, Benin was created by the French colonial conquest at the end of the 19th century. In the precolonial period, the territory comprised a multiplicity of independent states, differing in language and culture. The south was occupied mainly by Ewe-speaking peoples, who traced their traditional origins to the town of Tado (in modern Togo). During the 16th and 17th centuries, the most powerful state in this area was the kingdom of Allada (Ardra), but in the 18th and 19th centuries its place was taken by Dahomey. In the north, the largest group was the Bariba, the most important state being the kingdom of Nikki, which formed part of a confederacy including other Bariba states located in what is today Nigeria. The Somba, in the northwest, did not form a kingdom.

Benin’s political history since independence has been checkered. The first president, Hubert Maga, was ousted in 1963 by the army commander, and a series of four coups followed in the next six years. In 1970 a three-member presidential commission took power and suspended the constitution. The members, including former president Maga, were to serve as president successively. Maga held office first, succeeded in 1972 by Justin Ahomadegbe. Later that year, however, Major Mathieu Kérékou seized power, ending the commission form of government. In November 1975 the country was renamed Benin.