In 1981, Stephen Jay Gould exposed the bad science behind nineteenth-century American studies that "proved" that Anglo-Saxons were superior because they had larger brains. In The Skull Measurer's Mistake, Sven Lindqvist tells the story of Friedrich Tiedemann, the nineteenth-century German doctor who dared to speak out against such racist science when it was first practiced. Often the history of racism is reduced to the study of racists...