In the first phase of the experiments, pairs of twins and persons with inherited anomalies were put at the disposal of Dr. Mengele and subjected to all imaginable specialist medical examinations. They were also photographed, plaster casts were made of their jaws and teeth, and they were toe- and fingerprinted. As soon as these examinations were finished, they were killed with lethal injections of phenol to the heart so that the next phase of the experimentation could begin: autopsies and the comparative analysis of their internal organs.

Historians are divided about the motivations of the members of these mobile killing units. American historian Christopher Browning described one such unit, Police Battalion 101, as ordinary men in extraordinary circumstances in which conformity, peer pressure, careerism, obedience to orders, and group solidarity gradually overcame moral inhibitions. American writer Daniel Goldhagen viewed the very same unit as “willing executioners,” sharing Hitler’s vision of genocidal anti-Semitism and finding their tasks unpleasant but necessary. The diversity of the killers has challenged Goldhagen’s view that the motivation was a distinct form of German anti-Semitism. Yet both Browning and Goldhagen concurred that none of these killers faced punishment if he asked to be excused. Individuals had a choice whether to participate or not. Almost all chose to become killers.
Under the rule of Adolf Hitler, the persecution and segregation of Jews was implemented in stages. After the Nazi Party achieved power in Germany in 1933, its state-sponsored racism led to anti-Jewish legislation, economic boycotts, and the violence of the Kristallnacht ("Night of Broken Glass") pogroms, all of which aimed to systematically isolate Jews from society and drive them out of the country.
Many gentile rescuers of Jews appear to have been characterized by six interdependent features: (1) individuality or separateness—an inability to blend well into their social environments; (2) independence or self-reliance—a willingness to act in accordance with personal convictions, regardless of how their actions were viewed by others; (3) an enduring commitment to stand up for the needy that expressed itself in a history of doing good deeds; (4) a tendency to perceive aid to Jews in a matter-of-fact, unassuming way, as neither heroic nor extraordinary; (5) a propensity to save Jews through unplanned and unpremeditated acts, which were performed even impulsively; and (6) a universalistic perception of Jews that defined them not as Jews but as helpless beings, totally dependent on the protection of others.
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...

While these massacres were happening, the Nazis elsewhere were laying plans for an overall 'solution to the Jewish question'. Death camp operations began in December 1941 at Semlin in Serbia and Chelmno in Poland, where people were killed by exhaust fumes in specially modified vans, which were then driven to nearby sites where the bodies were plundered and burnt. 250,000 Jews were killed this way at Chelmno and 15,000 at Semlin.

A subsidiary aim of Operation Reinhard was to exploit a small minority of Jews residing in the Generalgouvernement as forced laborers before killing them. As the ghettos in Poland were systematically liquidated, those selected to live temporarily were deported to Operation Reinhard labor camps and to the concentration camp Lublin/Majdanek. This camp was established in 1941 under the authority of the Inspectorate of Concentration Camps in Berlin. Though conceived of and functioning in practice primarily as a concentration camp, housing political prisoners and Jewish forced laborers, Majdanek served from time to time as a killing site for Jews residing in the Generalgouvernement. It had gas chambers, in which the SS killed tens of thousands of Jews, primarily forced laborers too weak to work.
These three extermination factories — with Belzec responsible for about 600,000 victims, Sobibor 200,000, Treblinka 900,000 — shared certain features. Like Auschwitz at a later stage, they were equipped with railroad terminals that the trains entered in reverse. The victims were ordered to undress and then led through a corridor to the gas chambers; the gas was composed of carbon monoxide produced by diesel motors. At first, the corpses were buried in mass graves, later they were burnt in crematoria. The similarity to the “euthanasia” program was evident here too. In August 1941, the camps inspector was SS Sturmbannfiihrer Christian Wirth who, like dozens of other specialists of “Operation T4,” was placed under Odilo Globocnik, the commander of the SS for the region of Lublin.
Many healthy, young strong Jews were not killed immediately. The Germans' war effort and the “Final Solution” required a great deal of manpower, so the Germans reserved large pools of Jews for slave labor. These people, imprisoned in concentration and labor camps, were forced to work in German munitions and other factories, such as I.G. Farben and Krupps, and wherever the Nazis needed laborers. They were worked from dawn until dark without adequate food and shelter. Thousands perished, literally worked to death by the Germans and their collaborators.
The second is the saris, usually translated as “eunuch,” whose despair comes from childlessness. To him the prophet promises “a place and a name,” in Hebrew yad va-shem—a phrase, sometimes rendered “everlasting memorial,” that gives its name to Israel’s Holocaust memorial museum. Don’t worry, Isaiah is saying, you may think that your lack of progeny means that your name won’t live on. But God promises it will live on forever.
Toward the end of the diary we see just how difficult things have become for the family which is not always accurately represented in the movie versions of the diary. They were starving, never full at meals, and having to exist off moldy and tasteless food. There was one bathroom for eight people and at times the toilet could not be flushed. They had threadbare, holey clothing which was too small. The cat used the bathroom wherever it wanted towards the end, and their helpers came less and less frequently as circumstances got worse and worse. Their conditions deteriorated in ways that children living in the comfort of the 21st century could never imagine. It's so important for kids to read about these conditions and contrast them with their own in order to not only feel grateful but to feel sympathy for those who lived in these terrible times.
Josef Mengele was born on March 16, 1911, in Günzburg, near Ulm, Germany. He was the eldest son of Karl Mengele, a prosperous manufacturer of farming implements. In 1935, he earned a PhD in physical anthropology from the University of Munich. He also held a doctoral degree in genetic medicine. In January 1937, he became the assistant of Dr. Otmar von Verschuer at the Institute for Hereditary Biology and Racial Hygiene in Frankfurt. Verschuer was a leading scientific figure widely known for his research with twins.
I followed Freund up a short slope and past a trench where prisoners had been lined up and shot. It was now a barely perceptible dip in the loam. ­Freund stepped gingerly around it. In the distance, a train whistle howled, followed by the huff of a train, shuddering over tracks that had carried prisoners to their deaths decades earlier. Freund waited for it to pass. He recalled that he’d spent nearly a month researching the site—but “a few days,” he said, “is plenty of time to think about how many people died here, the amount of blood spilled.”

Browning’s account of the evolution of the Nazi genocide is the most comprehensive that has yet appeared, and it is no exaggeration to say that the author, who offers here 110 pages of endnotes, has read and absorbed every available document of relevance. Yet one must continue to wonder whether Hitler really waited until August-October 1941 to decide on a policy of genocide. Hitler habitually thought in demographic and social-Darwinist terms, and from 1939 onwards, he was confronted by a new demographic reality”that he now had many millions of Jews under his thumb, far more than the mere five hundred thousand in Nazi Germany in 1933, a figure itself ever-diminishing through emigration. With the conquest of western Poland in mid-1939, over two million Jews came under his rule, while the invasion and conquest of the Soviet Union would add another five million, entirely apart from the many Jews in Nazi satellite states such as Hungary and Romania. It is very difficult to believe that Hitler did not contemplate genocide along with the invasion of the Soviet Union, given the fact that he would soon have the ability to get rid of all of Europe’s Jews in one fell swoop. As Browning carefully notes, as early as February 1941 Hitler remarked to a number of other top Nazis that towards the Jews “he was thinking of many things in a different way, not exactly more friendly.”

Mengele was born on 16 March 1911 to Walburga (née Hupfauer) and Karl Mengele in Günzburg, Bavaria, Germany.[4] He was the oldest of three children; his two younger brothers were Karl Jr. and Alois. Their father was founder of the Karl Mengele & Sons company, producers of farm machinery.[5] Josef was successful at school and developed an interest in music, art, and skiing.[6] He completed high school in April 1930 and went on to study philosophy in Munich,[7] where the headquarters of the Nazi Party were located.[8] In 1931, Mengele joined the Stahlhelm, Bund der Frontsoldaten, a paramilitary organization that was absorbed into the Nazi Sturmabteilung (Storm Detachment; SA) in 1934.[7][9]