One of the most horrific terms in history was used by Nazi Germany to designate human beings whose lives were unimportant, or those who should be killed outright: Lebensunwertes Leben, or "life unworthy of life". The phrase was applied to the mentally impaired and later to the "racially inferior," or "sexually deviant," as well as to "enemies of the state" both internal and external. From very early in the war, part of Nazi policy was to murder civilians en masse, especially targeting Jews. Later in the war, this policy grew into Hitler's "final solution", the complete extermination of the Jews. It began with Einsatzgruppen death squads in the East, which killed some 1,000,000 people in numerous massacres, and continued in concentration camps where prisoners were actively denied proper food and health care. It culminated in the construction of extermination camps -- government facilities whose entire purpose was the systematic murder and disposal of massive numbers of people. In 1945, as advancing Allied troops began discovering these camps, they found the results of these policies: hundreds of thousands of starving and sick prisoners locked in with thousands of dead bodies. They encountered evidence of gas chambers and high-volume crematoriums, as well as thousands of mass graves, documentation of awful medical experimentation, and much more. The Nazis killed more than 10 million people in this manner, including 6 million Jews. (This entry is Part 18 of a weekly 20-part retrospective of World War II)
For the first time, it’s possible to say why the Mossad failed to apprehend the man who was perhaps the most wanted Nazi to survive World War II. Documents and interviews reveal that contrary to popular belief, for most of the time that Mengele was in hiding, the Mossad wasn’t looking for him at all — or placed finding him far down its to-do list. My new research sheds light on a time when realism and maturity shaped the agency’s priorities, rather than an understandable desire to spill Nazi blood.
He had a wide variety of other research interests. Among these was a fascination with heterochromia, a condition in which the irises of an individual's eyes differ in coloration. Throughout his stay in Auschwitz, Mengele collected the eyes of his murdered victims, in part to furnish “research material” to colleague Karin Magnussen, a KWI researcher of eye pigmentation. He himself also conducted several experiments in an attempt to unlock the secret of artificially changing eye color. He also zealously documented in camp inmates the progression of the disease Noma, a type of gangrene which destroys the mucous membrane of the mouth and other tissues.

Tens of thousands of Jews held in the eastern territories were marched towards the heart of Germany so they could not bear witness to the Allies. Aware that the world had been alerted to the horrors of the camps, the Nazis sought to destroy evidence. In June, Soviet forces liberated the first major camp, known as Majdanek, in Lublin, Poland. The Nazis had burned down the crematorium chimney but had failed to destroy the gas chambers and barracks. Only a few hundred inmates were still alive.
^ Ronald J. Berger (2002). Fathoming the Holocaust: A Social Problems Approach. Transaction Publishers. p. 57–8. ISBN 0202366111. Bureaucrats in the Reichsbahn performed important functions that facilitated the movement of trains. They constructed and published timetables, collected fares, and allocated cars and locomotives. In sending Jews to their death, they did not deviate much from the routine procedures they used to process ordinary train traffic.
Mengele used Auschwitz as an opportunity to continue his anthropological studies and research into heredity, using inmates for human experimentation.[2] His medical procedures showed no consideration for the health, safety, or physical and emotional suffering of the victims.[2][3] He was particularly interested in identical twins, people with heterochromia iridum (eyes of two different colors), dwarfs, and people with physical abnormalities.[2] A grant was provided by the Deutsche Forschungsgemeinschaft (German Research Foundation), at the request of von Verschuer, who received regular reports and shipments of specimens from Mengele. The grant was used to build a pathology laboratory attached to Crematorium II at Auschwitz II-Birkenau.[38] Dr. Miklós Nyiszli, a Hungarian Jewish pathologist who arrived in Auschwitz on 29 May 1944, performed dissections and prepared specimens for shipment in this laboratory.[39] The twin research was in part intended to prove the supremacy of heredity over environment and thus strengthen the Nazi premise of the superiority of the Aryan race.[40] Nyiszli and others reported that the twin studies may also have been motivated by an intention to increase the reproduction rate of the German race by improving the chances of racially desirable people having twins.[41]

After invading Poland, the Germans established ghettos in the incorporated territories and General Government to confine Jews.[143] The ghettos were formed and closed off from the outside world at different times and for different reasons.[196][197] For example, the Łódź ghetto was closed in April 1940,[143] to force the Jews inside to give up money and valuables;[198] the Warsaw ghetto was closed for health considerations (for the people outside, not inside, the ghetto),[199] but this did not happen until November 1940;[143] and the Kraków ghetto was not established until March 1941.[200] The Warsaw Ghetto contained 380,000 people[143] and was the largest ghetto in Poland; the Łódź Ghetto was the second largest,[201] holding between 160,000[202] to 223,000.[203] Because of the long drawn-out process of establishing ghettos, it is unlikely that they were originally considered part of a systematic attempt to eliminate Jews completely.[204]
Executions by the Einsatzgruppen, mobile killing squads,were abandoned for practical reasons. Although approximately 1.5 million Jews had been shot by the winter of 1941, the Nazis felt that the efficiency of this slow and cumbersome method left much to be desired. Moreover, they found it was bad for the sol­diers’ morale. Himmler himself, commander of the SS and as such responsible for the annihilation of the Jews, was persuaded, after having witnessed such an execu­tion, that it badly affected the mental health of those carrying out the execution. The institutionalization of organized murder, founded on a division of labor and carried out in special installations expressly designed for this purpose, distanced the executioner from the victim, an indispensable psychological advantage in an enterprise of annihilation of such a huge scale.
An SS report described the scene: "The Jews stayed in the burning buildings until because of the fear of being burned alive they jumped down from the upper stories…With their bones broken, they still tried to crawl across the street into buildings which had not yet been set on fire…Despite the danger of being burned alive the Jews and bandits often preferred to return into the flames rather than risk being caught by us."
The twins, Bernard and Simon Zajdner, born Dec. 28, 1929, were deported with their sister, Micheline, on May 20, 1944.They were victims of Josef Mengele's inhuman "medical experiments." Eva Mozes and her identical twin, Miriam, were survivors of the deadly genetic experiments conducted by Josef Mengele. Their parents, grandparents, two older sisters, uncles, aunts and cousins were killed in the Holocaust. After the liberation of the camp, Eva and Miriam were the first two twins in the famous film taken by the Soviets - often shown in footage about the horrors of Holocaust.
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.”
Mengele firmly endorsed Nazi racial theory and engaged in a wide spectrum of experiments which aimed to illustrate the lack of resistance among Jews or Roma to various diseases. He also attempted to demonstrate the “degeneration” of Jewish and “Gypsy” blood through the documentation of physical oddities and the collection and harvesting of tissue samples and body parts. Many of his “test subjects” died as a result of the experimentation or were murdered in order to facilitate post-mortem examination.
Olga Lengyel, a prisoner at the Birkenau camp, wrote in her book entitled "Five Chimneys" that she had heard about Dr. Mengele from the other inmates before she saw him. Lengyel wrote that she had heard that Dr. Mengele was "good-looking" but she was surprised by how "really handsome" he was. Lengyel wrote, regarding Dr. Mengele: "Though he was making decisions that meant extermination, he was as pleasantly smug as any man could be."

I expect you will be interested to hear what it feels like to hide; well, all I can say is that I don't know myself yet. I don't think I shall ever feel really at home in this house but that does not mean that I loathe it here, it is more like being on vacation in a very peculiar boardinghouse. Rather a mad way of looking at being in hiding perhaps but that is how it strikes me.

Between April and June of 1940, Germany invaded Norway, Denmark, the Netherlands, Belgium, and Luxembourg consolidating power across neutral Western Europe. On June 22, 1940, France signed an armistice with Germany, which divided France between the German-occupied territory in the north and the Vichy regime in the south. Although officially neutral, the French state during this time was generally pro-Nazi and cooperated with Germany’s racial policies.
A week later, he and other members of the crew received a visit from the camp’s Sturmbannführer, or commander, a 30-year-old dandy who wore boots polished shiny as mirrors, white gloves that reached up to his elbows, and smelled strongly of perfume. Zeidel remembered what the commandant told them: “Just about 90,000 people were killed here, lying in mass graves.” But, the Sturmbannführer explained, “there must not be any trace” of what had happened at Ponar, lest Nazi command be linked to the mass murder of civilians. All the bodies would have to be exhumed and burned. The wood collected by Zeidel and his fellow prisoners would form the pyres.
Anne’s diary, a devastating and relatable coming-of-age story, was left behind in the Secret Annex, but kept safe by a family friend, Miep Gies. Anne's father, Otto Frank, was the Secret Annex's sole survivor of the Holocaust. After Otto was liberated from a concentration camp, Miep gave him the diary. Otto Frank edited the diary and removed a few sensitive passages—some that weren’t so nice about Anne’s mom, other Secret Annex members, or parts that seemed too sexual for a teenager in the 1940's. However, the most currently printed versions are more complete.
In 1935, Mengele earned a PhD in anthropology from the University of Munich.[7] In January 1937, he joined the Institute for Hereditary Biology and Racial Hygiene in Frankfurt, where he worked for Dr. Otmar Freiherr von Verschuer, a German geneticist with a particular interest in researching twins.[7] As von Verschuer's assistant, Mengele focused on the genetic factors that result in a cleft lip and palate, or a cleft chin.[10] His thesis on the subject earned him a cum laude doctorate in medicine (MD) from the University of Frankfurt in 1938.[11] (Both of his degrees were revoked by the issuing universities in the 1960s.)[12] In a letter of recommendation, von Verschuer praised Mengele's reliability and his ability to verbally present complex material in a clear manner.[13] The American author Robert Jay Lifton notes that Mengele's published works were in keeping with the scientific mainstream of the time, and would probably have been viewed as valid scientific efforts even outside Nazi Germany.[13]