1933 April 11, NICHTARIER ("non-Aryan") (Germany)
Became a legal classification, known as the Arierparagraph (Aryan Clause). According to this, anyone who had a Jewish grandparent was considered Jewish even if the person had converted. This made it "legal" to discharge Jews from their position in the universities, hospitals, and legal professions. In some countries under later NAZI occupation (Italy, Bulgaria, etc.) this definition was modified so that it didn't include the children of converts or converts who were married to local Christians.