Mengele injected chemicals into the eyes of children in an attempt to change their eye color. Unfortunately a strict veil of secrecy over the experiments enabled Mengele to do his work more effectively.The full extent of his gruesome work will never be known because the records he sent to Dr. Von Verschuer at the Kaiser Wilhelm Institute were shipped out in two truckloads and destroyed by the latter.
In 1969, Mengele and the Stammers jointly purchased a farmhouse in Caieiras, with Mengele as half owner.[93] When Wolfgang Gerhard returned to Germany in 1971 to seek medical treatment for his ailing wife and son, he gave his identity card to Mengele.[94] The Stammers' friendship with Mengele deteriorated in late 1974 and when they bought a house in São Paulo, Mengele was not invited to join them.[b] The Stammers later bought a bungalow in the Eldorado neighborhood of São Paulo, which they rented out to Mengele.[97] Rolf, who had not seen his father since the ski holiday in 1956, visited him at the bungalow in 1977; he found an unrepentant Nazi who claimed he had never personally harmed anyone, only having carried out his duty.[98]
Further trials at Nuremberg took place between 1946 and 1949, which tried another 185 defendants.[460] West Germany initially tried few ex-Nazis, but after the 1958 Ulm Einsatzkommando trial, the government set up a governmental agency to investigate crimes.[461] Other trials of Nazis and collaborators took place in Western and Eastern Europe. In 1960, Mossad agents captured Adolf Eichmann in Argentina and brought him to Israel to stand trial on 15 indictments, including war crimes, crimes against humanity, and crimes against the Jewish people. He was convicted in December 1961 and executed in June 1962. Eichmann's trial and death revived interest in war criminals and the Holocaust in general.[462]
Browning also notes that the destruction of the Jews went hand-in-hand with a much wider attempt at “ethnic cleansing” throughout Eastern Europe. The Nazis had well-advanced plans, which might have been realized had they won the war, to remove by force millions of Poles and other Slavs to Siberia, with vast numbers certain to die en route. One of the major merits of Browning’s book is its detailed discussion of these plans, as well as Nazi policies towards the gypsies. Browning notes, correctly, that the Nazis killed large numbers of gypsies even though Hitler hardly ever mentioned them and certainly did not have anti-gypsy hostility at the heart of his ideology. Browning also offers a detailed consideration of the Nazi program of murdering the physically and mentally handicapped among “Aryan” Germans (the “T4 program”), which began in mid-1939 and eventually claimed seventy thousand victims before it was stopped in mid-1941, and he reports that many of the killers in the T4 program went on to be directly involved with the extermination of the Jews in Eastern Europe. 

“The final solution transcended the bounds of modern historical experience. Never before in modern history had one people made the killing of another the fulfillment of an ideology, in whose pursuit means were identical with ends. History has, to be sure, recorded terrible massacres and destructions that one people perpetrated against another. But all, however cruel and unjustifiable, were intended to achieve an instrumental ends, being means to ends and not ends in and of themselves.” (3)
Within a month of his arrival at Auschwitz, an outbreak of noma erupted in the Gypsy camp. Mengele’s solution was to send over 1000 Gypsies to the gas chamber. A similar event occurred in the women’s camp a month later, and the doctor sent more than 600 women with typhus to the same fate. In one of the most horrific exterminations, Mengele and a group of other officers circled a fire pit before about 10 dump trucks filled with children arrived. The trucks backed up to the fire and Mengele and the other officers started throwing the children into the pit. The children screamed as they were burned alive, while others managed to crawl out of the pit. But the officers walked around the pit with sticks and pushed those who managed to get out back into the fire.

The "Final Solution" The origin of the "Final Solution," the Nazi plan to exterminate the Jewish people, remains uncertain. What is clear is that the genocide of the Jews was the culmination of a decade of Nazi policy, under the rule of Adolf Hitler. The "Final Solution" was implemented in stages. After the Nazi party rise to power, state-enforced racism resulted in anti-Jewish legislation, boycotts, "Aryanization," and finally the "Night of Broken Glass" pogrom, all of which aimed to remove the Jews from German society. After the beginning of World War II, anti-Jewish policy evolved into a comprehensive plan to concentrate and eventually annihilate European Jewry.
After the June 1941 German invasion of the Soviet Union, SS and police units (acting as mobile killing units) began massive killing operations aimed at entire Jewish communities. By autumn 1941, the SS and police introduced mobile gas vans. These paneled trucks had exhaust pipes reconfigured to pump poisonous carbon monoxide gas into sealed spaces, killing those locked within. They were designed to complement ongoing shooting operations.
The Germans' overwhelming repression and the presence of many collaborators in the various local populations severely limited the ability of the Jews to resist. Jewish resistance did occur, however, in several forms. Staying alive, clean, and observing Jewish religious traditions constituted resistance under the dehumanizing conditions imposed by the Nazis. Other forms of resistance involved escape attempts from the ghettos and camps. Many who succeeded in escaping the ghettos lived in the forests and mountains in family camps and in fighting partisan units. Once free, though, the Jews had to contend with local residents and partisan groups who were often openly hostile. Jews also staged armed revolts in the ghettos of Vilna, Bialystok, Bedzin-Sosnowiec, krakow, and Warsaw.
German communists, socialists and trade unionists were among the earliest opponents of the Nazis[443] and among the first to be sent to concentration camps.[444] Before the invasion of the Soviet Union, Hitler issued the Commissar Order, which ordered the execution of all political commissars and Communist Party members captured.[445] Nacht und Nebel ("Night and Fog") was a directive of Hitler in December 1941, resulting in the disappearance of political activists throughout the German-occupied territories.[446]
Several resistance groups were formed, such as the Jewish Combat Organization in the Warsaw Ghetto and the United Partisan Organization in Vilna.[310] Over 100 revolts and uprisings occurred in at least 19 ghettos and elsewhere in Eastern Europe. The best known is the Warsaw Ghetto Uprising of 1943, when around 1,000 poorly armed Jewish fighters held the SS at bay for four weeks.[311][q] During a revolt in Treblinka on 2 August 1943, inmates killed five or six guards and set fire to camp buildings; several managed to escape.[316][317] In the Białystok Ghetto on 16 August 1943, Jewish insurgents fought for five days when the Germans announced mass deportations.[318] On 14 October 1943, Jewish prisoners in Sobibór, including Jewish-Soviet prisoners of war, attempted an escape,[319] killing 11 SS officers and a couple of Ukrainian camp guards.[320] Around 300 escaped, but 100 were recaptured and shot.[321] On 7 October 1944, 300 Jewish members of the Sonderkommando at Auschwitz, who learned they were about to be killed, attacked their guards and blew up crematorium IV. Three SS officers were killed, one of whom was stuffed into an oven, as was a German kapo. None of the Sonderkommando rebels survived the uprising.[322]
By the spring of 1942, the Nazis had established six killing centers (death camps) in Poland: Chelmno (Kulmhof), Belzec, Sobibor, Treblinka, Maidanek and Auschwitz. All were located near railway lines so that Jews could be easily transported daily. A vast system of camps (called Lagersystem) supported the death camps. The purpose of these camps varied: some were slave labor camps, some transit camps, others concentration camps and their sub­camps, and still others the notorious death camps. Some camps combined all of these functions or a few of them. All the camps were intolerably brutal.

The Holocaust was the systematic, bureaucratic, state-sponsored persecution and murder of six million Jews by the Nazi regime and its collaborators. Holocaust is a word of Greek origin meaning “sacrifice by fire.” The Nazis, who came to power in Germany in January 1933, believed that Germans were “racially superior” and that the Jews, deemed “inferior,” were an alien threat to the so-called German racial community.

Dogim backed down; the diggers pressed on. On April 9, Farber announced that they’d reached the roots of a tree near the barbed-wire fence that encircled the camp’s perimeter. Three days later, he made a tentative stab with a makeshift probe he’d fashioned out of copper tubing. Gone was the stench of the pits. “We could feel the fresh April air, and it gave us strength,” he later recalled. “We saw with our own eyes that freedom was near.”

Yet any projection of Anne Frank as a contemporary figure is an unholy speculation: it tampers with history, with reality, with deadly truth. “When I write,” she confided, “I can shake off all my cares. My sorrow disappears, my spirits are revived!” But she could not shake off her capture and annihilation, and there are no diary entries to register and memorialize the snuffing of her spirit. Anne Frank was discovered, seized, and deported; she and her mother and sister and millions of others were extinguished in a program calculated to assure the cruellest and most demonically inventive human degradation. The atrocities she endured were ruthlessly and purposefully devised, from indexing by tattoo through systematic starvation to factory-efficient murder. She was designated to be erased from the living, to leave no grave, no sign, no physical trace of any kind. Her fault—her crime—was having been born a Jew, and as such she was classified among those who had no right to exist: not as a subject people, not as an inferior breed, not even as usable slaves. The military and civilian apparatus of an entire society was organized to obliterate her as a contaminant, in the way of a noxious and repellent insect. Zyklon B, the lethal fumigant poured into the gas chambers, was, pointedly, a roach poison.
One of the Auschwitz survivors who was selected by Dr. Josef Mengele for his cruel and horrific experiments was Yitzchak Ganon, a Greek Jew who was deported, along with his parents and 5 brothers and sisters to Auschwitz in 1944, according to a news article by Alan Hall, published on December 11, 2009. Ganon told reporter Alan Hall that he was selected for an experiment in which Dr. Mengele removed one of his kidneys without an anesthetic: "He cut into me without an anesthetic. The pain was indescribable. I felt every slice of the knife. Then I saw my kidney pulsating in his hand. [...] After the operation I was given no painkillers and put to work. I cleaned up after the bloody operations carried out by Mengele."
Life in the ghetto was abominable, and thousands died. There was no medicine. The food ration allowed was a quarter of that available for the Germans, barely enough to allow survival. The water supply was contaminated in many ghettos. Epidemics of tuberculosis, typhoid, and lice were common. Bodies of new victims piled up in the streets faster than they could be carted away. In the Warsaw ghetto, more than 70,000 died of exposure, disease, and starvation during the first two winters. Almost all of those who survived the Warsaw ghetto were either killed when the ghetto was razed in 1943 or died in the death camps.
——— (2015). "Is the "Final Solution" Unique?". The Third Reich in History and Memory. London: Abacus. ISBN 978-0-349-14075-9. Revised and extended from Richard Evans (2011). "Wie einzigartig war die Ermordung der Juden durch die Nationalsocialisten?" in Günter Morsch and Bertrand Perz (eds). Neue Studien zu nationalsozialistischen Massentötungen durch Giftgas: Historische Bedeutung, technische Entwicklung, revisionistische Leugnung. Berlin: Metropol Verlag, pp. 1–10. ISBN 9783940938992

There are two versions of the diary written by Anne Frank. She wrote the first version in a designated diary and two notebooks (version A), but rewrote it (version B) in 1944 after hearing on the radio that war-time diaries were to be collected to document the war period. Version B was written on loose paper, and is not identical to Version A, as parts were added and others omitted.[22]

Although he was raised some 5,000 miles from Lithuania, on Long Island, New York, Freund has deep roots in the area. His great-grandparents fled Vilnius in the early 20th century, during an especially violent series of pogroms undertaken by the Czarist government, when the city still belonged to the Russian Empire. “I’ve always felt a piece of me was there,” Freund told me.

The Nazis used the phrase Lebensunwertes Leben (life unworthy of life) in reference to the disabled and mentally ill.[92] On 14 July 1933, the Law for the Prevention of Hereditarily Diseased Offspring (Gesetz zur Verhütung erbkranken Nachwuchses), the Sterilization Law, was passed, allowing for compulsory sterilization.[93][94] The New York Times reported on 21 December that year: "400,000 Germans to be sterilized".[95] There were 84,525 applications from doctors in the first year. The courts reached a decision in 64,499 of those cases; 56,244 were in favor of sterilization.[96] Estimates for the number of involuntary sterilizations during the whole of the Third Reich range from 300,000 to 400,000.[97]

Nevertheless, some acts of rescue seem to have been unplanned, spontaneous extensions of a general habit to help the needy. Indeed, most rescuers do not appear to have thought carefully about their actions or analyzed them; instead, they viewed their assistance to Jews as a natural reaction to human suffering. Some even insisted in postwar interviews that there was nothing special about what they did to save Jewish lives. Only a small fraction of rescuers saw their saving of Jews as extraordinary. A large majority of rescuers described aiding Jews because they were in pain and in need, while just over one-quarter said that they helped because it was a Christian duty. About half saw their actions as a protest against the occupation. For some rescuers, such attitudes required protecting even people they disliked.

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]