The Holocaust did not happen a day. It grew for 2000 years un till it peaked. Weather Hitler was there or not to take advantage of the moment . Or weather he was there to cause it to peak is debatable. It happened because nobody would stop it. 'The killing stopped in 1944 the anti-Semitism did not''. Anti-Semitism led to the final solution. Which was the Nazis plan to kill all the Jews in Europe. It was carried out by killing squads ,ghettos, and camps. The Final Solution was personal but it was also a project. It was not just the actions of Hitler but a plan carried out by the world. ''Jews are not humans''. Or that's what some of the soldiers said. With a national precipitation it was easy for cruel and mean acts to be committed. Nazis rounded up Jehovah's witnesses and homo sexual and sent them to cams to be gassed. Homo Sexual were forced to wear a pink triangle periling the star of David.
Josef Mengele (/ˈmɛŋɡələ/; German: [ˈmɛŋələ]; 16 March 1911 – 7 February 1979) was a German Schutzstaffel (SS) officer and physician in Auschwitz concentration camp during World War II. He performed deadly human experiments on prisoners and was a member of the team of doctors who selected victims to be killed in the gas chambers. Arrivals that were judged able to work were admitted into the camp, while those deemed unsuitable for labor were sent to the gas chambers to be killed. With Red Army troops sweeping through Poland, Mengele was transferred 280 kilometers (170 mi) from Auschwitz to the Gross-Rosen concentration camp on 17 January 1945, just ten days before the arrival of the Soviet forces at Auschwitz. After the war, he fled to South America where he evaded capture for the rest of his life.