Science has long debunked genetic differences between races but prior to this knowledge several hundred thousand people believed otherwise. Fueled by Social Darwinism and evolutionary theories the Eugenics Movement emerged. This school of thought turned into a social movement and began as a method of reducing society to its most fit members. This scientific racism employed an insidious agenda to reduce procreation amongst blacks in America. This ethnic cleansing was rather overt except toward the thousands upon thousands of black women being sterilized unbeknownst to them. Key figures of the American Eugenics Movement contributed large amounts of funds to found the institution known as The American Birth Control League, which later developed into Planned Parenthood.