German fascists in World War II were classified as Jews in the early stage through religious surveys and household registration surveys (the first three generations of ancestors, plus those with Jews on their mothers' backs and grandparents' backs, or those who married Jews), with Jewish signs hanging on their bodies or arms, were in front of people; By the middle and late period of the war, most Jews in Europe were sent to concentration camps. Hitler once asked medical experts to verify skull tests, and the brains of Aryans were more developed and wider than those of other races. The ears of Jews are obviously different from those of Aryans;