Women in Judaism follow most religious laws but are exempted from those that would be difficult due to traditional domestic roles like childbirth and housework. They have significant respect and rights regarding marriage. Jewish identity is passed through the mother. The Holocaust was the systematic state-sponsored persecution and murder of approximately 6 million Jews by Nazi Germany and its allies between 1933 to 1945 due to Nazi beliefs in racial supremacy. Anti-Semitism refers to hostility against Jews that was prevalent in Europe in the late 19th and 20th centuries, manifesting in violent attacks and pogroms against Jews and culminating in the attempted genocide of Jews in the Holocaust.