In early 1943, encouraged by von Verschuer, Mengele applied to transfer to the concentration camp service.[20][30] His application was accepted and he was posted to Auschwitz, where he was appointed by SS-Standortarzt Eduard Wirths, chief medical officer at Auschwitz, to the position of chief physician of the Zigeunerfamilienlager (Romani family camp) at Birkenau,[20][30] a subcamp located on the main Auschwitz complex. The SS doctors did not administer treatment to the Auschwitz inmates, but supervised the activities of inmate doctors who had been forced to work in the camp medical service.[31] As part of his duties, Mengele made weekly visits to the hospital barracks and ordered any prisoners who had not recovered after two weeks in bed to be sent to the gas chambers.[32]

The first killing center set up in occupied Polish lands was the camp at Chełmno on the Ner; Jews brought in from the ghettos in the Wartheland were being killed there from December 1941. Three more camps, somewhat larger, were opened at Bełżec, Sobibor, and Treblinka (in what was known as “Aktion Reinhard”) somewhat later, between March and July 1942.
The Jews killed represented around one third of the world population of Jews,[398] and about two-thirds of European Jewry, based on an estimate of 9.7 million Jews in Europe at the start of the war.[399] Much of the uncertainty stems from the lack of a reliable figure for the number of Jews in Europe in 1939, numerous border changes that make avoiding double-counting of victims difficult, lack of accurate records from the perpetrators, and uncertainty about whether deaths occurring months after liberation, but caused by the persecution, should be counted.[392]
According to the Yad Vashem Holocaust Martyrs' and Heroes' Remembrance Authority in Jerusalem, "[a]ll the serious research" confirms that between five and six million Jews died.[391] Early postwar calculations were 4.2 to 4.5 million from Gerald Reitlinger;[392] 5.1 million from Raul Hilberg; and 5.95 million from Jacob Lestschinsky.[393] In 1986 Lucy S. Dawidowicz used the pre-war census figures to estimate 5.934 million.[394] Yehuda Bauer and Robert Rozett in the Encyclopedia of the Holocaust (1990) estimated 5.59–5.86 million.[395] A 1996 study led by Wolfgang Benz suggested 5.29 to 6.2 million, based on comparing pre- and post-war census records and surviving German documentation on deportations and killings.[391] Martin Gilbert arrived at a minimum of 5.75 million.[396] The figures include over one million children.[397]
In October 1941, Himmler authorized SS General Odilo Globocnik (SS and police leader for the Lublin District of the Generalgouvernement) to implement a plan to systematically murder all Jews residing in the Generalgouvernement. In 1942, this project received the code name "Operation Reinhard" (Einsatz Reinhard), a reference to Heydrich (who had been authorized to manage the implementation of the "Final Solution" and who was assassinated by Czech agents in May 1942 in Prague).

In the eyes of the world, we’re doomed, but if after all this suffering, there are still Jews left, the Jewish people will be held up as an example. Who knows, maybe our religion will teach the world and all the people in it about goodness, and that’s the reason, the only reason, we have to suffer. . . . God has never deserted our people. Through the ages Jews have had to suffer, but through the ages they’ve gone on living, and the centuries of suffering have only made them stronger.
When exactly Hitler settled on straightforward murder as a means of removal has been harder to pinpoint. As Yale historian Timothy Snyder writes, “It cannot be stressed enough that the Nazis did not know how to eradicate the Jews when they began the war against the Soviet Union [in the summer of 1941]… They could not be confident that SS men would shoot women and children in large numbers.” But as Operation Barbarossa, the name for the Nazi invasion of the U.S.S.R, proved during the mass shootings of June 1941 and the massacres at Kiev in September, the Order Police and Einsatzgrüppen were more than willing to commit mass murders. This meant Hitler could take the solution to the Jewish problem to its “furthest extremes,” in the words of Philipp Bouhler, the senior Nazi official responsible for the euthanasia program that killed more than 70,000 handicapped German people.
These programmes are best seen as a series of linked genocides, each having its own history, background, purpose and significance in the Nazi scheme of things. The Holocaust was the biggest of the killing programmes and, in certain important ways, different from the others. The Jews figured in Nazi ideology as the arch-enemy of the 'Aryan race', and were targeted not merely for terror and repression but for complete extinction. The Nazis failed in this aim because they ran out of time, but they pursued it fanatically until their defeat in 1945. The Holocaust led to widespread public awareness of genocide and to modern efforts to prevent it, such as the 1948 UN Convention on Genocide.
These evacuations were regarded as provisional or "temporary solutions" ("Ausweichmöglichkeiten").[266][p] The final solution would encompass the 11 million Jews living not only in territories controlled by Germany, but elsewhere in Europe and adjacent territories, such as Britain, Ireland, Switzerland, Turkey, Sweden, Portugal, Spain, and Hungary, "dependent on military developments".[266] There was little doubt what the final solution was, writes Peter Longerich: "the Jews were to be annihilated by a combination of forced labour and mass murder".[268]
Before and after the March 1933 Reichstag elections, the Nazis intensified their campaign of violence against opponents.[77] They set up concentration camps for extrajudicial imprisonment.[78] One of the first, at Dachau, opened on 9 March 1933.[79] Initially the camp contained mostly Communists and Social Democrats.[80] Other early prisons were consolidated by mid-1934 into purpose-built camps outside the cities, run exclusively by the SS.[81] The initial purpose of the camps was to serve as a deterrent by terrorizing Germans who did not conform.[82]
Mengele joined the Nazi Party in 1937. He received his medical degree in 1938, the same year he joined the SS. Mengele was drafted into the army in June 1940, and subsequently volunteered for the medical service of the Waffen-SS (Armed SS). There is little (and often contradictory) documentation about Mengele's activities between this time and early 1943. It is clear, however, that he first functioned as a medical expert for the Race and Settlement Main Office in summer 1940 at the Central Immigration Office North-East in Posen (today Poznan). He then served as a medical officer with the SS Division “Wiking” (SS Pioneer Battalion V), with which he saw action on the Eastern Front.

^ The Holocaust Encyclopedia (2013). "Resistance in Ghettos". Jewish Uprisings in Ghettos and Camps, 1941–1944. United States Holocaust Memorial Museum. Notable examples include the Łuck Ghetto uprising quelled on 12 December 1942 with the help of the Ukrainian Auxiliary Police, see: Yad Vashem, Łuck, December 1942 on YouTube; testimony of Shmuel Shilo. "The forgotten December". Archived from the original on 22 July 2015. The Łachwa Ghetto uprising was suppressed on 3 September 1942, the Częstochowa Ghetto uprising on 30 June 1943, the Sosnowiec Ghetto uprising on 3 August 1943, and the Białystok Ghetto uprising on 17 August 1943.
One extraordinary aspect of the journey to the death camps was that the Nazis often charged Jews deported from Western Europe train fare as third class passengers under the guise that they were being "resettled in the East." The SS also made new arrivals in the death camps sign picture postcards showing the fictional location "Waldsee" which were sent to relatives back home with the printed greeting: "We are doing very well here. We have work and we are well treated. We await your arrival."
The geographical patterns of local hostility to Jews influenced receptivity to their rescue. Thus, western Europe (France, Belgium, and the Netherlands), Scandinavia (Denmark and Finland), and southern Europe (Italy and Greece) adapted rapidly to the problems of hiding and rescuing Jews, whereas eastern and central Europe (Poland, the Ukraine, and Austria) remained a more hostile environment to rescue efforts.
Into this quagmire bravely wade Ari Folman and David Polonsky, the creators of “Anne Frank’s Diary: The Graphic Adaptation,” a stunning, haunting work of art that is unfortunately marred by some questionable interpretive choices. As Folman acknowledges in an adapter’s note, the text, preserved in its entirety, would have resulted in a graphic novel of 3,500 pages. At times he reproduces whole entries verbatim, but more often he diverges freely from the original, collapsing multiple entries onto a single page and replacing Anne’s droll commentary with more accessible (and often more dramatic) language. Polonsky’s illustrations, richly detailed and sensitively rendered, work marvelously to fill in the gaps, allowing an image or a facial expression to stand in for the missing text and also providing context about Anne’s historical circumstances that is, for obvious reasons, absent from the original. The tightly packed panels that result, in which a line or two adapted from the “Diary” might be juxtaposed with a bit of invented dialogue between the Annex inhabitants or a dream vision of Anne’s, do wonders at fitting complex emotions and ideas into a tiny space — a metaphor for the Secret Annex itself.
They set off at 11 p.m., in groups of ten. The first group emerged from the tunnel without incident. Zeidel recalled slithering on his stomach toward the edge of the camp. He scarcely dared to exhale; his heart slammed against his chest wall. Later, Farber would speculate that it was the snap of a twig that alerted their captors to the escape. Dogim attributed it to a blur of movement spotted by the guards.
As of 1 January 2006, Yad Vashem had recognized 21,310 persons as Righteous Gentiles. Poles formed the largest group, with 5,941 having been recognized. Other East Europeans came from Ukraine (2,139), Hungary (671), Lithuania (630), Belarus (564), Slovakia (460), Russia (120), Czech Republic (115), Latvia (100), Moldova (71), Romania (52), and Estonia (3). Yad Vashem cautions, however, that its figures do not represent the actual number of people who rescued Jews in each country. For example, gentiles who saved Jews for financial gain are excluded. Thus many more people rescued Jews than are officially recognized. Because Poles constitute by far the largest group of Righteous Gentiles, they have been the most extensively studied, and most of the following observations are based on data concerning them.

The entry of the U.S. into the War is also crucial to the time-frame proposed by Christian Gerlach, who argued in his 1997 thesis,[122] that the Final Solution decision was announced on 12 December 1941, when Hitler addressed a meeting of the Nazi Party (the Reichsleiter) and of regional party leaders (the Gauleiter).[123][a] The day after Hitler's speech, on 13 December 1941 Joseph Goebbels wrote in his diary:[125]
Otto Frank’s own childhood, in Frankfurt, Germany, was wholly unclouded. A banker’s son, he lived untrammelled until the rise of the Nazi regime, when he was already forty-four. At nineteen, in order to acquire training in business, he went to New York with Nathan Straus, a fellow student and an heir to the Macy’s department-store fortune. During the First World War, Frank was an officer in the German military, and in 1925 he married Edith Holländer, a manufacturer’s daughter. Margot was born in 1926 and Anneliese Marie, called Anne, in 1929. His characteristically secular world view belonged to an era of quiet assimilation, or, more accurately, accommodation (which includes a modicum of deference), when German Jews had become, at least in their own minds, well integrated into German society. From birth, Otto Frank had breathed the free air of the affluent bourgeoisie.
The little white house was located on the west side of the Birkenau camp, behind the Central Sauna which was completed in 1943, and near Krema IV. The Central Sauna got its name because this was the location of the iron chambers where the prisoners' clothing was disinfected with hot steam. The Central Sauna also contained a shower room with 50 shower heads.
This past fall, I reached out to Hana Amir, Zeidel’s daughter, and we spoke several times over Skype. From her home in Tel Aviv, Amir, who is slight and spectacled, with a gray bob, told me about how she learned of her father’s story. When Amir was young, Zeidel worked as a truck driver, and he was gone for long stretches at a time. At home, he was withholding with his daughter and two sons. “My father was of a generation that didn’t talk about their emotions, didn’t talk about how they felt about what they’d been through,” Amir told me. “This was their coping mechanism: If you’re so busy with moving forward, you can disconnect from your memories.” But there were signs that the past wasn’t done with Zeidel: Amir believes he suffered from recurrent nightmares, and he was fastidious about his personal hygiene—he washed his hands many times a day.
"Righteous Gentiles of the Holocaust by David P. Gushee is an authoritative and indispensable exploration of a highly important aspect of the Holocaust, the willingness of a small, but morally significant, number of non-Jews to take on great risks for themselves and their families to rescue Jews from the Nazi death machine. In this well-documented, well-written book, Gushee explores the full range of Gentile responses to the plight of the Jews from overt hostility and obscene brutality to altruistic rescue, the better to understand the achievements of truly Righteous Gentiles. Highly recommended for anyone interested in the Holocaust."―Richard L. Rubenstein, President Emeritus, Distinguished Professor of Religion, University of Bridgeport
On Friday, August 4, 1944, the day of the arrest, Miep Gies climbed the stairs to the hiding place and found it ransacked and wrecked. The beleaguered little band had been betrayed by an informer who was paid seven and a half guilders—about a dollar—for each person: sixty guilders for the lot. Miep Gies picked up what she recognized as Anne’s papers and put them away, unread, in her desk drawer. There the diary lay untouched, until Otto Frank emerged alive from Auschwitz. “Had I read it,” she said afterward, “I would have had to burn the diary because it would have been too dangerous for people about whom Anne had written.” It was Miep Gies—the uncommon heroine of this story, a woman profoundly good, a failed savior—who succeeded in rescuing an irreplaceable masterwork. It may be shocking to think this (I am shocked as I think it), but one can imagine a still more salvational outcome: Anne Frank’s diary burned, vanished, lost—saved from a world that made of it all things, some of them true, while floating lightly over the heavier truth of named and inhabited evil. ♦
After Otto was unable to find a publisher, the work was given to historian Jan Romein, who was so impressed that he wrote about the diary in a front-page article for the newspaper Het Parool in 1946. The resulting attention led to a publishing deal with Contact, and Het Achterhuis was released on June 25, 1947. An immediate best seller in the Netherlands, the work began to appear elsewhere. In 1952 the first American edition was published under the title Anne Frank: The Diary of a Young Girl; it included an introduction by Eleanor Roosevelt. The work was eventually translated into more than 65 languages, and it was later adapted for the stage and screen. All proceeds went to a foundation established in Anne’s honour. In 1995, 15 years after Otto’s death, a new English version of the Diary was published. It contained material that had been previously omitted. In an effort to extend the copyright date—which was to begin expiring in various European countries in 2016—Otto was added as a coauthor in 2015.

Rooted in 19th-century antisemitic discourse on the "Jewish question," "Final Solution" as a Nazi cover term denotes the last stage in the evolution of the Third Reich's anti-Jewish policies from persecution to physical annihilation on a European scale. Currently, Final Solution is used interchangeably with other, broader terms that refer to German extermination policies during World War II, as well as more specifically to describe German intent and the decision-making process leading up to the beginning of systematic mass murder.

The Soviet Army reached Auschwitz on January 27, 1945. By that time, an estimated 1,500,000 Jews, along with 500,000 Polish prisoners, Soviet POWs and Gypsies, had perished there. As the Western Allies pushed into Germany in the spring of 1945, they liberated Buchenwald, Bergen-Belsen, and Dachau. Now the full horror of the twelve-year Nazi regime became apparent as British and American soldiers, including Supreme Commander Dwight D. Eisenhower, viewed piles of emaciated corpses and listened to vivid accounts given by survivors.

Otto Frank, it turns out, is complicit in this shallowly upbeat view. Again and again, in every conceivable context, he had it as his aim to emphasize “Anne’s idealism,” “Anne’s spirit,” almost never calling attention to how and why that idealism and spirit were smothered, and unfailingly generalizing the sources of hatred. If the child is father of the man—if childhood shapes future sensibility—then Otto Frank, despite his sufferings in Auschwitz, may have had less in common with his own daughter than he was ready to recognize. As the diary gained publication in country after country, its renown accelerating year by year, he spoke not merely about but for its author—and who, after all, would have a greater right? The surviving father stood in for the dead child, believing that his words would honestly represent hers. He was scarcely entitled to such certainty: fatherhood does not confer surrogacy.

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.
As the mass shootings continued in Russia, the Germans began to search for new methods of mass murder. This was driven by a need to have a more efficient method than simply shooting millions of victims. Himmler also feared that the mass shootings were causing psychological problems in the SS. His concerns were shared by his subordinates in the field.[251] In December 1939 and January 1940, another method besides shooting was tried. Experimental gas vans equipped with gas cylinders and a sealed compartment were used to kill the disabled and mentally-ill in occupied Poland.[252] Similar vans, but using the exhaust fumes rather than bottled gas, were introduced to the Chełmno extermination camp in December 1941,[253] and some were used in the occupied Soviet Union, for example in smaller clearing actions in the Minsk ghetto.[254] They also were used for murder in Yugoslavia.[255]
In the German parliament, the Nazi party, led by Adolf Hitler, gained popularity. The number of seats Nazis controlled in the parliament rose from 12 in 1928 to 230 in 1932, making them the largest political party. The strong showing guaranteed the Nazi party would need to be part of any political coalition. Believing he could check Hitler’s ambition, President Hindenburg reluctantly made Hitler the Chancellor of Germany on January 30, 1933.

According to the Quad City Times, Yanina Cywinska was a 10-year-old student at the Kirov Ballet in Leningrad (now St. Petersburg) when her Polish Catholic parents suddenly called her home to Warsaw. Cywinska's parents, a physician and an artist, worked to assist Jews imprisoned in the Warsaw ghetto during the Nazi occupation of Poland until they themselves were placed in a Warsaw detention center. Once the family boarded trains for Auschwitz, Yanina would never see her parents or brother again.
Mengele joined the Nazi Party in 1937. He received his medical degree in 1938, the same year he joined the SS. Mengele was drafted into the army in June 1940, and subsequently volunteered for the medical service of the Waffen-SS (Armed SS). There is little (and often contradictory) documentation about Mengele's activities between this time and early 1943. It is clear, however, that he first functioned as a medical expert for the Race and Settlement Main Office in summer 1940 at the Central Immigration Office North-East in Posen (today Poznan). He then served as a medical officer with the SS Division “Wiking” (SS Pioneer Battalion V), with which he saw action on the Eastern Front.
The forest burst orange with gunfire. “I looked around: Our entire path was filled with people crawling,” Farber has written. “Some jumped up and started running in various directions.” Farber and Dogim cut through the fence and tore off into the woods, with Zeidel and three others in tow. The men ran all night, through rivers, through forests, past villages. After a week, the escapees were deep inside the Rudnitsky Woods. Farber introduced himself to the partisan leader. “Where do you come from?” the man asked.
In his 1965 essay "Command and Compliance", which originated in his work as an expert witness for the prosecution at the Frankfurt Auschwitz Trials, the German historian Hans Buchheim wrote there was no coercion to murder Jews and others, and all who committed such actions did so out of free will. Buchheim wrote that chances to avoid executing criminal orders "were both more numerous and more real than those concerned are generally prepared to admit",[468] and that he found no evidence that SS men who refused to carry out criminal orders were sent to concentration camps or executed.[469] Moreover, SS rules prohibited acts of gratuitous sadism, as Himmler wished for his men to remain "decent"; acts of sadism were carried out on the initiative of those who were either especially cruel or wished to prove themselves ardent National Socialists.[468] Finally, he argued that those of a non-criminal bent who committed crimes did so because they wished to conform to the values of the group they had joined and were afraid of being branded "weak" by their colleagues if they refused.[470]
Mengele fled Germany to Argentina in 1948, using false documents given to him by the Red Cross. (According to the Mossad’s file, the organization was aware that it was helping a Nazi criminal escape justice.) In Buenos Aires, he lived at first under an assumed name, but later reverted to his own name. He even had a nameplate on his door: Dr. Josef Mengele.
Dr. Josef Mengele, nicknamed The Angel Of Death, and the other Nazi doctors at the death camps tortured men, women and children and did medical experiments of unspeakable horror during the Holocaust. Victims were put into pressure chambers, tested with drugs, castrated, frozen to death. Children were exposed to experimental surgeries performed without anesthesia, transfusions of blood from one to another, isolation endurance, reaction to various stimuli. The doctors made injections with lethal germs, sex change operations, removal of organs and limbs.

In Germany, the Nazis had been murdering mentally and physically disabled people as part of its euthanasia programme since 1939. In the beginning, doctors killed them by lethal injection. This was not considered fast enough, so they developed a new process of gassing that was faster and more effective in killing large numbers of people. Over 70,000 people were killed as part of the euthanasia programme.
Dr. Mengele was known by all the prisoners because of his good looks and charm. According to Gerald L. Posner and John Ware, the authors of "Mengele, the Complete Story," many of the children in the Birkenau camp "adored Mengele" and called him "Uncle Pepi." This information came from Vera Alexander, a survivor of Birkenau, who said that Dr. Mengele brought chocolate and the most beautiful clothes for the children, including hair ribbons for the little girls.
While concentration camps were meant to work and starve prisoners to death, extermination camps (also known as death camps) were built for the sole purpose of killing large groups of people quickly and efficiently. The Nazis built six extermination camps, all in Poland: Chelmno, Belzec, Sobibor, Treblinka, Auschwitz, and Majdanek. (Auschwitz and Majdanek were both concentration and extermination camps.)
Despite international efforts to track him down, he was never apprehended and lived for 35 years hiding under various aliases. He lived in Paraguay and Brazil until his death in 1979. One afternoon, living in Brazil, he went for a swim. While in the ocean he suffered a massive stroke and began to drown. By the time he was dragged to shore, he was dead.
In October 1939 Hitler signed a "euthanasia decree" backdated to 1 September 1939 that authorized Reichsleiter Philipp Bouhler, the chief of Hitler's Chancellery, and Karl Brandt, Hitler's personal physician, to carry out a program of involuntary "euthanasia"; after the war this program was named Aktion T4.[98] It was named after Tiergartenstraße 4, the address of a villa in the Berlin borough of Tiergarten, where the various organizations involved were headquartered.[99] T4 was mainly directed at adults, but the "euthanasia" of children was also carried out.[100] Between 1939 and 1941, 80,000 to 100,000 mentally ill adults in institutions were killed, as were 5,000 children and 1,000 Jews, also in institutions. In addition there were specialized killing centres, where the deaths were estimated at 20,000, according to Georg Renno, the deputy director of Schloss Hartheim, one of the "euthanasia" centers, or 400,000, according to Frank Zeireis, the commandant of the Mauthausen concentration camp.[101] Overall, the number of mentally and physically handicapped murdered was about 150,000.[102]

German officers raided the building and made arrests on August 4, 1944. The arresting officer, Karl Silberbauer, later said he vividly remembered arresting the Franks, and even told Otto Frank, “What a lovely daughter you have.” When Silberbauer’s actions were discovered in 1963, he was suspended from his job at the Viennese police force. He is quoted as saying, “Why pick on me after all these years? I only did my duty. Now I am suspended and I have just bought some new furniture and how am I going to pay for it?" After an investigation, he was allowed to return to his job.
Anne Frank poses in 1941 in this photo made available by Anne Frank House in Amsterdam, Netherlands. In August of 1944, Anne, her family and others who were hiding from the occupying German Security forces, were all captured and shipped off to a series of prisons and concentration camps. Anne died from typhus at age 15 in Bergen-Belsen concentration camp, but her posthumously published diary has made her a symbol of all Jews killed in World War II. #
With the beginning of war and the organized murder of "undesirable" non-Jewish groups among the German population in the so-called Euthanasia program, hazy declarations of intent and expectation from the top leadership – most prominently Hitler's Reichstag statement of January 30, 1939, that a new world war would bring about "the annihilation of the Jewish race in Europe" – provided legitimization and incentive for violent, on occasion already murderous measures adopted at the periphery that would in turn radicalize decision making in Berlin. Heydrich's Schnellbrief to the Einsatzgruppen commanders in Poland dated September 21, 1939, on the "Jewish question" refers to secret "planned total measures" (thus the final aim) ("die geplanten Gesamtmaßnahmen (also das Endziel")); nevertheless, most Holocaust historians today agree that at the time this solution was still perceived in terms of repression and removal, not annihilation. The more frequent use of the term Final Solution in German documents beginning in 1941 indicates gradual movement toward the idea of physical elimination in the context of shattered plans for large-scale population resettlement (including the "Madagascar plan") and megalomanic hopes of imperial aggrandizement in Eastern Europe. American scholar Christopher Browning notes that "a 'big bang' theory" fails to adequately describe German decision making; instead, the process was prolonged and incremental, driven by "a vague vision of implied genocide."

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]