The Afro-American religions developed in various parts of the New World, generally as a result of African slaves syncretizing their ancestral beliefs with elements of other faiths, usually Folk Catholicism and Native American religions. Of course, some Afro-American religions came around after the end of slavery in their country of origin, such as Quimbanda and Kumina. But these religions don't have much prominence outside Brazil, the Caribbean, and Louisiana. As a result, they're pretty obscure (aside from Vodou and Rastafarianism, but these two religions are very frequently misunderstood by non-practitioners).
Your challenge is to have Afro-American religions spread further and become more prominent.
Your challenge is to have Afro-American religions spread further and become more prominent.