In September 1939, the German army occupied the western half of Poland. German police soon forced tens of thousands of Polish Jews from their homes and into ghettoes, giving their confiscated properties to ethnic Germans (non-Jews outside Germany who identified as German), Germans from the Reich or Polish gentiles. Surrounded by high walls and barbed wire, the Jewish ghettoes in Poland functioned like captive city-states, governed by Jewish Councils. In addition to widespread unemployment, poverty and hunger, overpopulation made the ghettoes breeding grounds for disease such as typhus.

In 1942, the crematorium area was constructed next to the main camp. It included the old crematorium and the new crematorium (Barrack X) with a gas chamber. There is no credible evidence that the gas chamber in Barrack X was used to murder human beings. Instead, prisoners underwent "selection"; those who were judged too sick or weak to continue working were sent to the Hartheim "euthanasia" killing center near Linz, Austria. Several thousand Dachau prisoners were murdered at Hartheim. Further, the SS used the firing range and the gallows in the crematoria area as killing sites for prisoners.
In effort to counter the strength and influence of spiritual resistance, Nazi security services monitored clergy very closely.[58]:141–2 Priests were frequently denounced, arrested and sent to concentration camps, often simply on the basis of being "suspected of activities hostile to the State" or that there was reason to "suppose that his dealings might harm society".[58]:142 Despite SS hostility to religious observance, the Vatican and German bishops successfully lobbied the regime to concentrate clergy at one camp and obtained permission to build a chapel, for the priests to live communally and for time to be allotted to them for the religious and intellectual activity. Priests Barracks at Dachau were established in Blocks 26, 28 and 30, though only temporarily. 26 became the international block and 28 was reserved for Poles – the most numerous group.[58]:145–6

Smith learned that the farm was the "brainchild of the Reichsfuehrer SS, that it was operated by the Institute for the Study of Medicinal and Alimentary Plants, an SS research organization, that German scientists, particularly physicians, botanists, and chemists, supervised the research, that political prisoners who had been scientists in the past were permitted to contribute their talents to the program in return for the privilege of staying alive."

After Rostov, the Donetz Basin, the Leningrad front, a sorry interlude in the Carpathians and the Rumanian catastrophe, Skodzensky was to spend two months in a hospital near Berchtesgaden. Thereafter, he was automatically assigned to the SS Leibstandarte Division and, no longer fit for active service, was sent in the late spring of 1945 as a "convalescent" to serve at the Dachau concentration camp, where his Iron Cross was due to mire itself in infamy.
As U.S. Army troops neared the Dachau sub-camp at Landsberg on 27 April 1945, the SS officer in charge ordered that 4,000 prisoners be murdered. Windows and doors of their huts were nailed shut. The buildings were then doused with gasoline and set afire. Prisoners who were naked or nearly so were burned to death, while some managed to crawl out of the buildings before dying. Earlier that day, as Wehrmacht troops withdrew from Landsberg am Lech, towns people hung white sheets from their windows. Infuriated SS troops dragged German civilians from their homes and hanged them from trees.[73][74]
After WWII had ended, photographs of the Holocaust stunned the public. Newspapers in the United States had reported on the oppression of the Jews in Germany during the war. In 1942, many newspapers were writing details of the Holocaust, but these stories were short and were not widely read. In 1943, after sources had confirmed the killings of at least two million Jews in concentration camps across Europe a Gallup poll found that less than half of Americans believed these reports to be true; 28% thought they were “just a rumor”. The reports were unconfirmed and sometimes denied by the United States government.

The Nazis considered Jews to be the main danger to Germany. Jews were the primary victims of Nazi racism, but other victims included Roma (Gypsies) and people with mental or physical disabilities. The Nazis murdered some 200,000 Roma. And they murdered at least 250,000 mentally or physically disabled patients, mainly German and living in institutions, in the so-called Euthanasia Program.
The Holocaust was the murder by Nazi Germany of six million Jews. While the Nazi persecution of the Jews began in 1933, the mass murder was committed during World War II. It took the Germans and their accomplices four and a half years to murder six million Jews. They were at their most efficient from April to November 1942 – 250 days in which they murdered some two and a half million Jews. They never showed any restraint, they slowed down only when they began to run out of Jews to kill, and they only stopped when the Allies defeated them. More...
Sanitation was incredibly inadequate, with few latrines and water faucets for the tens of thousands of prisoners interned in Bergen-Belsen at this time. Overcrowding, poor sanitary conditions, and the lack of adequate food, water, and shelter led to an outbreak of diseases such as typhus, tuberculosis, typhoid fever, and dysentery, causing an ever increasing number of deaths. In the first few months of 1945, tens of thousands of prisoners died.
Prisoners in the camp were given guns by some of the liberators and were allowed to shoot or beat to death 40 of the German guards while American soldiers looked on. The German Sheppard guard dogs were shot in their kennels. The bodies of some the dead SS soldiers were later buried in unmarked graves inside the garrison, after their dog tags had been removed; their families were not notified of their deaths. Some of the bodies of the executed SS soldiers were burned in the ovens in the crematorium at Dachau.

^ Nazi Science – The Dachau Hypothermia Experiments. Robert L. Berger, N Engl J Med 1990; 322:1435–1440 May 17, 1990 DOI: 10.1056/NEJM199005173222006. quote: "On analysis, the Dachau hypothermia study has all the ingredients of a scientific fraud, and rejection of the data on purely scientific grounds is inevitable. They cannot advance science or save human lives." ... "Future citations are inappropriate on scientific grounds."
The most notorious physician was Josef Mengele, an SS officer who became the Auschwitz camp doctor on 30 May 1943.[54] Interested in genetics[54] and keen to experiment on twins, he would pick out subjects from the new arrivals during "selection" on the ramp, shouting "Zwillinge heraus!" (twins step forward!).[55] They would be measured, killed, and dissected. One of Mengele's assistants said in 1946 that he was told to send organs of interest to the directors of the "Anthropological Institute in Berlin-Dahlem". This is thought to refer to Mengele's academic supervisor, Otmar Freiherr von Verschuer , director from October 1942 of the Kaiser Wilhelm Institute of Anthropology, Human Heredity, and Eugenics in Berlin-Dahlem.[56][55][i] Mengele's experiments included placing subjects in pressure chambers, testing drugs on them, freezing them, attempting to change their eye color by injecting chemicals into children's eyes, and amputations and other surgeries.[59]

In the view of Christian Gerlach, Hitler announced his decision to annihilate the Jews on or around 12 December 1941, probably on 12 December during a speech to the Gauleiters, part of the Nazi Party leadership.[259] This was one day after the German declaration of war against the United States, which followed the Japanese attack on Pearl Harbour on 7 December and the United States declaration of war on Japan on 8 December.[260] According to Deborah Dwork and Robert Jan van Pelt, Hitler had trusted American Jews, whom he assumed were all-powerful, to keep their government out of the war in the interests of German Jews. When America declared war, the Jews were blamed.[261] Joseph Goebbels, the Reich Minister of Propaganda, noted of Hitler's speech: "He warned the Jews that if they were to cause another world war, it would lead to their destruction. ... Now the world war has come. The destruction of the Jews must be its necessary consequence."[260][o]
The prisoners of Dachau concentration camp originally were to serve as forced labor for a munition factory, and to expand the camp. It was used as a training center for SS guards and was a model for other concentration camps.[28] The camp was about 300 m × 600 m (1,000 ft × 2,000 ft) in rectangular shape. The prisoners' entrance was secured by an iron gate with the motto "Arbeit macht frei" ("Work will make you free"). This reflected Nazi propaganda, which trivialized concentration camps as labor and re-education camps, when in fact forced labor was used as a method of torture and murder.[29]
Who knew actor Ralph Fiennes would be so possessive of his Voldemort role from the Harry Potter movies? After all the hours sitting in a makeup chair, putting on a bald cap, and making his nose disappear day after day, you’d think Fiennes would be ok with never playing this evil character again—especially considering that he almost turned down the role in the first place. But it seems that the character really grew on the two-time Oscar nominee. As Screen Rant reports, Fiennes has made it clear that if Voldemort is ever needed in a future film, he's ready to come back.
From the start, camp detainees were subjected to harsh treatment. On May 25, 1933, Sebastian Nefzger (1900-33), a Munich schoolteacher, was beaten to death while imprisoned at Dachau. The SS administrators who operated the camp claimed that Nefzger had committed suicide, but an autopsy disclosed that he likely lost his life due to asphyxiation or strangulation. The Munich public prosecutor summarily indicted Wäckerle and his underlings on a murder charge. The prosecutor was immediately overruled by Hitler, who issued an edict stating that Dachau and all other concentration camps were not to be subjected to German law as it applied to German citizens. SS administrators alone would run the camps and hand out punishment as they saw fit.
As a member of the Nazi Party and the Abwehr intelligence service, Schindler was in danger of being arrested as a war criminal. Bankier, Stern, and several others prepared a statement he could present to the Americans attesting to his role in saving Jewish lives. He was also given a ring, made using gold from dental work taken out of the mouth of Schindlerjude Simon Jeret. The ring was inscribed "Whoever saves one life saves the world entire."[77] To escape being captured by the Russians, Schindler and his wife departed westward in their vehicle, a two-seater Horch, initially with several fleeing German soldiers riding on the running boards. A truck containing Schindler's mistress Marta, several Jewish workers, and a load of black market trade goods followed behind. The Horch was confiscated by Russian troops at the town of Budweis, which had already been captured by Russian troops. The Schindlers were unable to recover a diamond that Oskar had hidden under the seat.[78] They continued by train and on foot until they reached the American lines at the town of Lenora, and then travelled to Passau, where an American Jewish officer arranged for them to travel to Switzerland by train. They moved to Bavaria in Germany in the fall of 1945.[79]

When British and Canadian troops finally entered they found over 13,000 unburied bodies and (including the satellite camps) around 60,000 inmates, most acutely sick and starving. The prisoners had been without food or water for days before the Allied arrival, partially due to allied bombing. Immediately before and after liberation, prisoners were dying at around 500 per day, mostly from typhus.[18] The scenes that greeted British troops were described by the BBC's Richard Dimbleby, who accompanied them: