In 1907, Indiana passed the world's first involuntary sterilization law based on the theory of eugenics. In time, more than 30 states and a dozen foreign countries followed suit. Although the Indiana statute was later declared unconstitutional, other laws restricting immigration and regulating marriage on "eugenic" grounds were still in effect in the U.S. as late as the 1970s. A Century of Eugenics in America assesses the history of eugenics...