Forro Creole

São Tomé is an island of the Gulf of Guinea, discovered by the Portuguese in the 15th century. It was uninhabited at the time, but Portuguese settlers used the island as a center of the slave trade, and there was a need for slaves on the island. It has been theorised that since both parties needed to communicate, a pidgin was formed. The substrate languages were from the Bantu and Kwa groups. It is believed that this pidgin then became fixed (creolized) as it became the mother language of children born from Portuguese men and African women slaves. Mixed marriages were then encouraged by the Portuguese Crown, for the sake of settlement. Later, because of Dutch and French pressure to gain the island, many Portuguese settlers left. Children of Portuguese and black women were, eventually, not considered African or slaves; some were considered full right Portuguese citizens.