The Holocaust was the systematic, bureaucratic, state-sponsored persecution and murder of approximately six million Jews by the Nazi regime and its collaborators. "Holocaust" is a word of Greek origin meaning "sacrifice by fire." The Nazis, who came to power in Germany in January 1933, believed that Germans were "racially superior" and that the Jews, deemed "inferior," were an alien threat to the so-called German racial community.
During the era of the Holocaust, German authorities also targeted other groups because of their perceived "racial inferiority": Roma (Gypsies), the disabled, and some of the Slavic peoples (Poles, Russians, and others). Other groups were persecuted on political, ideological, and behavioral grounds, among them Communists, Socialists, Jehovah's Witnesses, and homosexuals.
In 1933, the Jewish population of Europe stood at over nine million. Most European Jews lived in countries that Nazi Germany would occupy or influence during World War II. By 1945, the Germans and their collaborators killed nearly two out of every three European Jews as part of the "Final Solution," the Nazi policy to murder the Jews of Europe. Although Jews, whom the Nazis deemed a priority danger to Germany, were the primary victims of Nazi racism, other victims included some 200,000 Roma (Gypsies). At least 200,000 mentally or physically disabled patients, mainly Germans, living in institutional settings, were murdered in the so-called Euthanasia Program.
Tyranny spreads through Europe
As Nazi tyranny spread across Europe, the Germans and their collaborators persecuted and murdered millions of other people. Between two and three million Soviet prisoners of war were murdered or died of starvation, disease, neglect, or maltreatment. The Germans targeted the non-Jewish Polish intelligentsia for killing, and deported millions of Polish and Soviet civilians for forced labor in Germany or in occupied Poland, where these individuals worked and often died under deplorable conditions. From the earliest years of the Nazi regime, German authorities persecuted homosexuals and others whose behavior did not match prescribed social norms. German police officials targeted thousands of political opponents (including Communists, Socialists, and trade unionists) and religious dissidents (such as Jehovah's Witnesses). Many of these individuals died as a result of incarceration and maltreatment.