Candomblé developed among Afro-Brazilian communities amid the Atlantic slave trade of the 16th to 19th centuries. It arose through the blending of the traditional religions brought to Brazil by enslaved West and Central Africans, the majority of them Yoruba, Fon, and Bantu, and the Roman Catholic teachings of the Portuguese colonialists who then controlled the area. It primarily coalesced in the Bahia region during the 19th century. Following Brazil's independence from Portugal, the constitution of 1891 enshrined freedom of religion in the country, although Candomblé remained marginalized by the Roman Catholic establishment, which typically associated it with criminality. In the 20th century, growing emigration spread Candomblé both throughout Brazil and abroad. The late 20th century saw growing links between Candomblé and related traditions in West Africa and the Americas, such as Cuban Santería and Haitian Vodou. Since the late 20th century, some practitioners have emphasized a re-Africanization process to remove Roman Catholic influences and create forms of Candomblé closer to traditional West African religion.