Porto-Novo was once a tributary of the
Yoruba Oyo Empire, which had offered it protection from the neighbouring
Fon, who were expanding their influence and power in the region. Today, the Yoruba community in Porto-Novo remains one of the two original ethnic groups in the city. The city was originally called
Ajashe (Àjàṣẹ́ in Yoruba orthography) by the Yorubas, and
Hogbonu by the
Gun. Although historically the original inhabitants of the area were
Yoruba speaking, there seems to have been a wave of migration from the region of
Allada further west in the 1600s, which brought Te-Agbalin (or Tê-Agbanlin) and his group to the region of Ajashe in the late 16th century. the real reason was to signal the development of a new port for the
slave trade. In 1861, the
British, who were active in nearby
Nigeria, bombarded the city, which caused the Kingdom of Porto-Novo to accept the
French offer of protection in 1863. The neighbouring
Kingdom of Dahomey objected to French involvement in the region and war broke out between the two states. In 1883, Porto-Novo was incorporated into the French "colony of
Dahomey and its dependencies" and in 1900, it became Dahomey's capital city. From 1908, the king held the title of
Chef supérieur. Many
Afro-Brazilians settled in Porto-Novo following their return to Africa after
emancipation in
Brazil. Brazilian architecture and foods are important to the city's cultural life. Under French colonial rule, flight across the new
border to British-ruled
Nigeria in order to avoid harsh taxation, military service and forced labour was common. Of note is the fact that the Nigeria-Benin southern border area arbitrarily cuts through contiguous areas of Yoruba and
Egun-speaking people. A combination of the aforementioned facts, coupled with the fact that the city itself lies within the sphere of Nigerian socioeconomic influence, has given Porto-Novo's residents a preference for some measure of bi-nationality or dual citizenship, with the necessary linguistic consequences; for example, Nigerian home video films in Yoruba with English subtitles have become popular in Porto-Novo and its suburbs. ==Seat of government==