Aldof Hiler believed that the supreme race was people with blond hair and blue eyes and he set up concentration camps to hold and kill eneimes that opposed him for some reason that i can't recall he put Jews in these camps and over the course of world war 2 killed over 6 million Jewish people and that is the Holocaust also Hitler put witness in camps and made them wear the purple triangle like he made the Jews wear the star. A lot died of Starvation or were beat to death but most died when he put them in large ovens and cooked them or put them in chambers and released gasses. The Holocaust was one of the largest cases of genocide in modern history, and while the term 'holocaust' has a general meaning from Greek origin that means 'sacrifice by fire', when people use this term they are generally referring to the Jewish Holocaust that took place during the years 1933-1945 when Hitler rose to power in Germany. This took place started out as murdering millions of Jews. The Nazis believed that Jews and other inferiors were the reason for Germany's weakness as a country, and therefore wanted to eliminate them in order to make a more powerful society and country. In 1933, there were more than 9 million Jews in Europe, many of whom lived in Germany and other countries that would become occupied by Germany during World War II. By the end of the war, more than 2/3 of the Jewish population had been killed by the Nazis as part of their 'Final Solution', which was simply their plan to murder Jews to create a 'Master Race' and turn Germany into a world power. Jews weren't the only ones killed, however. Hitler and his men also eliminated the disabled, the elderly, children, gypsies, homosexuals, Jehovah's Witnesses, and others that were a detriment to society in their eyes.