II.Protestants in the United States Most of the African-Americans are Baptists,but they go to different churches from the white. In southern communities the African-Americans find their main social center in their Baptist churches and sometimes a base from which to organize group action.Martin Luther King,Jr,a Baptist minister and social activist,led the civil rights movement in the US from the mid-1950s until his death by assassination in 1968. II. Protestants in the United States • Most of the African-Americans are Baptists, but they go to different churches from the white. In southern communities the African-Americans find their main social center in their Baptist churches and sometimes a base from which to organize group action. Martin Luther King, Jr, a Baptist minister and social activist, led the civil rights movement in the US from the mid-1950s until his death by assassination in 1968