The Nazis used public displays to spread their ideas of race. The chart shown here is titled "The Biology of Growth," and is labeled "Stages of Growth for Members of the Nordic Race." Photograph »

Establishing racial descent by measuring an ear at the Kaiser Wilhelm Institute for Anthropology. Germany, date uncertain. Photograph »

At the Kaiser Wilhelm Institute for Anthropology, Human Genetics, and Eugenics, a racial hygienist measures a woman's features in an attempt to determine her racial ancestry. Berlin, Germany, date uncertain. Photograph »