Book excerpt: Together, and separately, black and white Baptists created different but intertwined cultures that profoundly shaped the South. Adopting a biracial and bicultural focus, Paul Harvey works to redefine southern religious history, and by extension southern culture, as the product of such interaction--the result of whites and blacks having drawn from and influenced each other even while remaining separate and distinct. In tracing the growth of Baptist churches from small outposts of radically democratic plain-folk religion in the mid-18th century to conservative and culturally dominant institutions in the 20th century, Harvey explores one of the most impressive evolutions of American religious and cultural history.