The July 1933 Law for the Prevention of Hereditarily Diseased Offspring – written by Ernst Rüdin and other theorists of "racial hygiene" – established "Genetic Health Courts" which decided on compulsory sterilization of "any person suffering from a hereditary disease." These included, for the Nazis, those suffering from "Congenital Mental Deficiency", schizophrenia, "Manic-Depressive Insanity", "Hereditary Epilepsy", "Hereditary Chorea" (Huntington's), Hereditary Blindness, Hereditary Deafness, "any severe hereditary deformity", as well as "any person suffering from severe alcoholism". Further modifications of the law enforced sterilization of the "Rhineland bastards" (children of mixed German and African parentage).