Hitler's Connection to American Eugenics

The intellectual outlines of the eugenics Hitler adopted in 1924 were strictly American.  He merely compounded all the virulence of long-established American race science with his fanatic anti-Jewish rage.  Hitler's extremist eugenic science, which in many ways seemed like the logical extension of America's own entrenched programs and advocacy, eventually helped shape the institutions and even the machinery of the Third Reich's genocide.  By the time Hitler's concept of Aryan superiority emerged, his politics had completely fused into a biological and eugenic mindset.

Edwin Black, "War Against the Weak: Eugenics and America's Campaign to Create a Master Race," p.270