A pioneering investigator into the racial origins of ancient civilizations, Sayers believed that there were only three original races-white, black, and yellow-and that all peoples on earth were either from those three groups or mixtures thereof. Sayers argued all ancient civilizations had disappeared through racial amalgamation. He studies the ancient civilizations of India, Egypt, the Far East, the Middle East, and ancient North and South America, and then moves on to discuss the racial histories of Europe and modern America. His conclusion is that the white race could only be saved if it realized that it was one people, not many nations. In addition, he wrote, all the nonwhite or mixed races had to be physically separated from the whites and sent back to their original homelands. Although significant parts of Sayers' book have since been conclusively disproven by the advent of the science of genetics his pioneering work in studying the racial origins of ancient civilizations are still worth reading.