Explore how Darwin's evolutionary theory became a lens through which ideologies of the 19th and 20th centuries justified their agendas. This book examines the profound and often troubling influence of Darwinism on Nazism, eugenics movements, racist pseudoscience, communist doctrine, capitalist competition theory, and sexist hierarchies. Discover the complex historical connections between scientific theory and political ideology, and understand how ideas about natural selection were weaponized to support systems of oppression and control across the political spectrum.