 Christianity has become the predominant religion in the central and southern part of Nigeria, and the coastal regions stretching from southern Ghana to coastal parts of Sierra Leone.Like Islam, elements of traditional African religion are mixed with Christianity.West Africans primarily speak Niger–Congo languages, belonging mostly, though not exclusively, to its non-Bantu branches, though some Nilo-Saharan and Afro-Asiatic speaking groups are also found in West Africa.