Francis Galton, the English scientist who coined the term, defined eugenics as “the agencies under social control that improve or impair the racial qualities of future generations either physically or mentally.” Charles Davenport, the father of the American eugenics movement called it simply “the self direction of human evolution.”

These definitions stress differences that occupied either end of a continuum of eugenics practice. At one end, Galton’s definition stressed social control, or laws, to control human reproduction. At the other end, Charles Davenport’s stressed an individual’s own control over their reproduction. Social control ultimately embodied “negative eugenics”– limiting mixed race marriages, More >