The 1920s in America was a decade of rebellion, reform, and reaction as traditional Victorian values came under attack from all sides. Black leaders like W.E.B. Du Bois and Marcus Garvey, feminists like Alice Paul, politicians like Robert La Follette, and social scientists like Franz Boas and Margaret Mead all assaulted fundamental inequalities inherited from the nineteenth century. A host of scientific breakthroughs eroded the foundations of the...