Nazi dictator Adolf Hitler (1889-1945) endorsed a program in Germany to breed a superior race. The scheme was based on a horrific evolutionary theory called “eugenics” that was founded by Charles Darwin's cousin, Francis Galton. The idea of eugenics was to improve the human race using principles promoted in the theory of evolution.
The idea was simple: partition the human race into two groups, the “fit” and the “unfit.” Eugenics seemed to be a way to make sure the “fit” had children and the “unfit” did not. In Germany, the leaders of the eugenics movement got monstrous laws enacted that allowed sterilization of people regarded as “unfit,” and restriction of immigrants who were supposedly “biologically inferior.” (The United States and other countries enacted similar laws, but the Nazis took it to the extreme when Jews, blacks, and others were ruthlessly murdered to prop up the theory.)