In the Sex and Race series, first published in the 1940s, historian Joel Augustus Rogers questioned the concept of race, the origins of racial differentiation, and the root of the "e;color problem."e; Rogers surmised that a large percentage of ethnic differences are the result of sociological factors and in these volumes he gathered what he called "e;the bran of history"e;-the uncollected, unexamined history of black people-in the hope that these neglected parts of history would become part of the mainstream body of Western history. Drawing on a vast amount of research, Rogers was attempting to point out the absurdity of racial divisions. Indeed his belief in one race-humanity-precluded the idea of several different ethnic races. The series marshals the data he had collected as evidence to prove his underlying humanistic thesis: that people were one large family without racial boundaries. Self-trained and self-published, Rogers and his work were immensely popular and influential during his day, even cited by Malcolm X. The books are presented here in their original editions.