... the uncertain mists of time. This is the story that to-day seems most probable: from some center in southern Asia primitive human beings began to differentiate in two directions. Toward the south appeared the primitive Negro, long-headed and with flattened hair follicle. He spread along southern Asia and passed over into Africa, where he survives to-day as the reddish dwarfs of the center and ... — The Negro • W.E.B. Du Bois