At the end of the war, between 50,000 and 100,000 Jewish survivors were living in three zones of occupation: American, British and Soviet. Within a year, that figure grew to about 200,000. The American zone of occupation contained more than 90 percent of the Jewish displaced persons (DPs). The Jewish DPs would not and could not return to their homes, which brought back such horrible memories and still held the threat of danger from anti-Semitic neighbors. Thus, they languished in DP camps until emigration could be arranged to Palestine, and later Israel, the United States, South America and other countries. The last DP camp closed in 1957 (David S. Wyman, "The United States," in David S. Wyman, ed., The World Reacts to the Holocaust, Baltimore, MD: Johns Hopkins University Press, 1996, pp. 707­10).
"For the survivor who chooses to testify, it is clear: his duty is to bear witness for the dead and the living. He has no right to deprive future generations of a past that belongs to our collective memory. To forget would be not only dangerous but offensive; to forget the dead would be akin to killing them a second time. The witness has forced himself to testify. For the youth of today, for the children who will be born tomorrow. He does not want his past to become their future." Elie Wiesel, Night, Preface to the New Translation (New York: Hill and Wang, c2006), page xv.
On the eve of World War II, the Führer (supreme leader) publicly threatened the Jews of Europe during a speech in Berlin: "In the course of my life I have very often been a prophet, and have usually been ridiculed for it. During the time of my struggle for power it was in the first instance only the Jewish race that received my prophecies with laughter when I said that I would one day take over the leadership of the State, and with it that of the whole nation, and that I would then among other things settle the Jewish problem. Their laughter was uproarious, but I think that for some time now they have been laughing on the other side of their face. Today I will once more be a prophet: if the international Jewish financiers in and outside Europe should succeed in plunging the nations once more into a world war, then the result will not be the Bolshevizing of the earth, and thus the victory of Jewry, but the annihilation of the Jewish race in Europe!"
^ Berkhoff, Karel C. Ray Brandon; Wendy Lower, eds. The Shoah in Ukraine: History, Testimony, Memorialization. Indiana University Press. p. 290. Also in: Barbara N. Łopieńska; Ryszard Kapuściński (2003-07-13). "Człowiek z bagna" [A man from the marshes]. Interview. Przekrój nr 28/3029. Reprint: Ryszard Kapuściń Further info: Virtual Shtetl. "Glossary of 2,077 Jewish towns in Poland". POLIN Museum of the History of Polish Jews. Archived from the original on 8 February 2016. Gedeon. "Getta Żydowskie". Michael Peters. "Ghetto List".
But Auschwitz-Birkenau became more than a concentration camp. In the spring of 1942 gas chambers were built at Birkenau and mass transports of Jews began to arrive. Some of the new arrivals were inducted into the camp as registered prisoners, but the great majority were gassed immediately. These gassing operations were greatly expanded in the spring of 1943 with the construction of four purpose-built gas chamber and crematorium complexes, which included such refinements as electric lifts to carry bodies up to the crematoria. Each crematorium could handle 2,000 victims daily. In a nearby group of barracks, nicknamed 'Canada' by the prisoners, victims' belongings were sorted for transportation to the Reich. The victims' hair was used to stuff mattresses; gold teeth were melted down and the gold deposited to an SS account.
From gaining power in January 1933 until the outbreak of war in September 1939, the Nazi persecution of the Jews in Germany was focused on intimidation, expropriating their money and property, and encouraging them to emigrate.[11] According to the Nazi Party policy statement, the Jews and Gypsies (although numerically fewer),[12] were the only "alien people in Europe".[13] In 1936, the Bureau of Romani Affairs in Munich was taken over by Interpol and renamed The Center for Combating the Gypsy Menace.[13] Introduced at the end of 1937,[12] the "final solution of the Gypsy Question" entailed round-ups, expulsions, and incarceration of Romani in concentration camps built at, until this point in time, Dachau, Buchenwald, Flossenbürg, Mauthausen, Natzweiler, Ravensbruck, Taucha, and Westerbork. After the Anschluss with Austria in 1938, special offices were established in Vienna and Berlin to "facilitate" Jewish emigration, without covert plans for their forthcoming annihilation.[11]
Miep Gies, one of the Dutch citizens who hid the Franks during the Holocaust, kept Anne Frank’s writings, including her diary. She handed the papers to Otto Frank on the day he learned of his daughters’ deaths. He organized the papers and worked doggedly to get the diary published, first in Dutch in 1947. The first American edition appeared in 1952.
After the end of World War II, surviving archival documents provided a clear record of the Final Solution policies and actions of Nazi Germany. They included the Wannsee Conference Protocol, which documented the co-operation of various German state agencies in the SS-led Holocaust, as well as some 3,000 tons of original German records captured by Allied armies,[23][29] including the Einsatzgruppen reports, which documented the progress of the mobile killing units assigned, among other tasks, to kill Jewish civilians during the attack on the Soviet Union in 1941. The evidential proof which documented the mechanism of the Holocaust was submitted at Nuremberg.[29]
“Could the tunnel ever be excavated?” I asked Freund. He told me that the Vilna Gaon Museum, although already planning renovations at the site, was still deciding how to proceed, but that he has counseled against full excavation: He’d invited an architect and tunnel expert named Ken Bensimon to analyze the site, and Bensimon had concluded that even if a rabbi signed off on a dig—a necessity, given the proximity to what amounts to mass graves—the integrity of the passageway would be unlikely to hold.
^ Eikel, Markus (2013). "The local administration under German occupation in central and eastern Ukraine, 1941–1944". The Holocaust in Ukraine: New Sources and Perspectives (PDF). Center for Advanced Holocaust Studies, United States Holocaust Memorial Museum. Pages 110–122 in PDF. Ukraine differs from other parts of the Nazi-occupied Soviet Union, whereas the local administrators have formed the Hilfsverwaltung in support of extermination policies in 1941 and 1942, and in providing assistance for the deportations to camps in Germany mainly in 1942 and 1943.
During the Nazi occupation of the Netherlands, Anne Frank received a blank diary as one of her presents on June 12, 1942, her 13th birthday.[8][9] According to the Anne Frank House, the red, checkered autograph book which Anne used as her diary was actually not a surprise, since she had chosen it the day before with her father when browsing a bookstore near her home.[9] She began to write in it on June 14, 1942, two days later.[10][11]
“I’ve offered three possibilities” to the museum, Freund said. The first was to try to partially excavate one section of the tunnel and protect it with climate-controlling plexiglass walls. Alternatively, a re-creation could be built, as had been done with the recently finished facsimile of King Tutankhamun’s tomb, in the Valley of the Kings, in Egypt. The last option, Freund allowed, was a “little futuristic”: Relying on the data from the scans, a 3-D film could be created so visitors could relive the experience of the escape.

Over the decades that followed, ordinary Germans struggled with the Holocaust’s bitter legacy, as survivors and the families of victims sought restitution of wealth and property confiscated during the Nazi years. Beginning in 1953, the German government made payments to individual Jews and to the Jewish people as a way of acknowledging the German people’s responsibility for the crimes committed in their name.

^ "War nicht der 'Archipel Gulag' ursprünglicher als 'Auschwitz'? War nicht der 'Klassenmord' der Bolschewiki das logische und faktische Prius des 'Rassenmords' der Nationalsozialisten? Sind Hitlers geheimste Handlungen nicht gerade auch dadurch zu erklären, daß er den 'Rattenkäfig' nicht vergessen hatte? Rührte Auschwitz vielleicht in seinen Ursprüngen aus einer Vergangenheit her, die nicht vergehen wollte?"[477]
As an act of honor to those gentiles, Rani composed a Yizkor prayer in their memory. It is unique and breaks new ground. It extends the understanding of relationships between Jews and non-Jews. It remembers that “righteousness is an everlasting foundation” that breaks boundaries. May we reach a day where the example set by those righteous people will not be an extraordinary courageous act, but simply, the norm.
Eva Fogelman, Conscience and Courage: Rescuers of Jews during the Holocaust (New York, 1994); Philip Friedman, Their Brothers’ Keepers (New York, 1957); Martin Gilbert, The Righteous: The Unsung Heroes of the Holocaust (New York, 2003); Philip Paul Hallie, Lest Innocent Blood Be Shed: The Story of the Village of Le Chambon, and How Goodness Happened There (New York, 1979); Samuel Oliner and Pearl Oliner, The Altruistic Personality: Rescuers of Jews in Nazi Europe (New York, 1988); Mordecai Paldiel, The Path of the Righteous: Gentile Rescuers of Jews during the Holocaust (Hoboken, N.J., 1993); Michael Phayer and Eva Fleischner, Cries in the Night: Women Who Challenged the Holocaust (Kansas City, Mo., 1997); Nechama Tec, When Light Pierced the Darkness: Christian Rescue of Jews in Nazi-Occupied Poland (New York, 1986); Nechama Tec, In the Lion’s Den: The Life of Oswald Rufeisen (New York, 1990); Nechama Tec, Defiance: The Bielski Partisans (New York, 1993).
For the first time, camps were created specifically for Jews. Their conditions were far worse than other camps. The implicit intention was that the inmates would die there. Increasing numbers of Jews in Poland were relocated in ghettos. Non-Jewish Poles were also deported from their farms and villages to make room for ‘pure’ ethnic Germans to populate the new territory.

Hitler also believed the very presence of Jews in Germany and Nazi-occupied Europe posed a threat to German victory in the war. This was based on his experience during the First World War, when Germany had experienced a meltdown of civilian morale. In 1916, as a young soldier on sick leave in Munich, Hitler had been appalled at the apathy and anti-war sentiment he witnessed among German civilians. At the time, he concluded disloyal Jews had banded together and conspired to undermine the German war effort. And he was convinced they would do it again now if given the chance.

Anne Frank escaped gassing. One month before liberation, not yet sixteen, she died of typhus fever, an acute infectious disease carried by lice. The precise date of her death has never been determined. She and her sister, Margot, were among three thousand six hundred and fifty-nine women transported by cattle car from Auschwitz to the merciless conditions of Bergen-Belsen, a barren tract of mud. In a cold, wet autumn, they suffered through nights on flooded straw in overcrowded tents, without light, surrounded by latrine ditches, until a violent hailstorm tore away what had passed for shelter. Weakened by brutality, chaos, and hunger, fifty thousand men and women—insufficiently clothed, tormented by lice—succumbed, many to the typhus epidemic.
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]
In April 1944, two Jewish inmates escaped from Auschwitz and made it safely into Czechoslovakia. One of them, Rudolf Vrba, submitted a detailed report to the Papal Nuncio in Slovakia which was then forwarded to the Vatican, received there in mid-June. Thus far, Pope Pius XII had not issued a public condemnation of Nazi maltreatment and subsequent mass murder of Jews, and he chose to continue his silence.
However, the capital of this bureaucratized and industrialized world of mass murders was Auschwitz. An operative concentration camp since May 1940, in the autumn of 1941 it was equipped with gas chambers. According to the latest estimates, the number of Jews killed in this camp approximated 1.5 million. In Auschwitz II (Birkenau), symbol and synonym of the Holocaust, the Nazi program of mass extermination reached its highest level of “perfection.”
In the photo below, Captain Franz Hoessler is standing in front of a load of corpses of prisoners who died from typhus at Bergen-Belsen. He is speaking into a microphone for a documentary film made by the British after the Bergen-Belsen camp was turned over to them by Heinrich Himmler on April 15, 1945. He is wearing his SS uniform, but the insignia of his military rank has been removed. Hoessler was convicted by the British and hanged on December 13, 1945 for war crimes that he had committed at Auschwitz-Birkenau, including his participation in the selection of prisoners to be gassed.
In several instances, Jews took matters into their own hands and violently resisted the Nazis. The most notable was the 28-day battle waged inside the Warsaw Ghetto. There, a group of 750 Jews armed with smuggled-in weapons battled over 2000 SS soldiers armed with small tanks, artillery and flame throwers. Upon encountering stiff resistance from the Jews, the Nazis decided to burn down the entire ghetto.
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]
“I am marshalling my last remaining strength in order to die peacefully as one who will not surrender and who will not ask for forgiveness. The historical fact that Israel became the leading social political superpower in the 19th century lies before us. We have amongst us a flexible, tenacious, intelligent foreign tribe that knows how to bring abstract reality into play in many different ways. Not individual Jews but the Jewish spirit and Jewish consciousness have overpowered the world. All this is the consequence of a cultural history so unique in its way, so grand that every day polemic can achieve nothing against it. With the entire force of its armies the proud Roman Empire did not achieve that which Semitism has achieved in the West and particularly in Germany.”
The book Children of the Flames by Joe E. White chronicles the notorious medical experimental activities of Josef Mengele on approximately three thousand twins who passed through the Auschwitz death camp during WWII until its liberation at the end of the war. Only a few of the three thousand twins survived and now fifty years later they have told their story of how they were given special privileges in Auschwitz due to Mengele’s interest in twins and how as a result they have suffered during the past fifty years as the children who survived the still unknown and unexplained medical experiments and injections which they were subjected to at the hands of Josef Mengele.
In another case in which a mother did not want to be separated from her thirteen-year-old daughter, and bit and scratched the face of the SS man who tried to force her to her assigned line, Mengele drew his gun and shot both the woman and the child. As a blanket punishment, he then sent to the gas all people from that transport who had previously been selected for work, with the comment: "Away with this shit!" (Robert Jay Lifton, The Nazi Doctors.)
France had approximately 300,000 Jews, divided between the German-occupied north and the unoccupied collaborationist southern areas under the Vichy regime. The occupied regions were under the control of a military governor, and there, anti-Jewish measures were not enacted as quickly as they were in the Vichy-controlled areas.[163] In July 1940, the Jews in the parts of Alsace-Lorraine that had been annexed to Germany were expelled into Vichy France.[164] Vichy France's government implemented anti-Jewish measures in French Algeria and the two French Protectorates of Tunisia and Morocco.[165] Tunisia had 85,000 Jews when the Germans and Italians arrived in November 1942. An estimated 5,000 Jews were subjected to forced labor.[166]
^ Goebbels noted: "Regarding the Jewish question, the Fuhrer is determined to clear the table. He warned the Jews that if they were to cause another world war, it would lead to their own destruction. Those were not empty words. Now the world war has come. The destruction of the Jews must be its necessary consequence. We cannot be sentimental about it. It is not for us to feel sympathy for the Jews. We should have sympathy rather with our own German people. If the German people have to sacrifice 160,000 victims in yet another campaign in the east, then those responsible for this bloody conflict will have to pay for it with their lives."[262]
In the early 1990's, Argentine authorities opened its archives to reveal that several Nazi war criminals found safe haven in South America, including Dr. Josef Mengele, also known as Auschwitz’s Angel of Death. Mengele is infamous for his horrific experiments on inmates at the concentration camp. According to The New York Times in 1992, Mengele entered Argentina using a Red Cross-issued passport in 1949 and “practiced medicine in Buenos Aires for several years in the 1950s,” specializing in illegal abortions.
(CNN) -- On Friday, August 4, 1944 -- a beautiful summer morning, not unlike the one on which I am writing this now -- a car pulled up in front of a spice warehouse at 263 Prinsengracht in Amsterdam. Inside the car were an Austrian Gestapo officer and his Dutch subordinates, who, acting on a tip-off (whose source has never been identified), had come to arrest the eight Jews who had been hiding for two years in an attic above the warehouse.
As reported in The New York Times in 2015, "When Otto Frank first published his daughter's red-checked diary and notebooks, he wrote a prologue assuring readers that the book mostly contained her words".[53] Although many Holocaust deniers, such as Robert Faurisson, have claimed that Anne Frank's diary was fabricated,[54][55] critical and forensic studies of the text and the original manuscript have supported its authenticity.[56]
The foundation also relies on the fact that another editor, Mirjam Pressler, had revised the text and added 25 percent more material drawn from the diary for a "definitive edition" in 1991, and Pressler was still alive in 2015, thus creating another long-lasting new copyright.[53] The move was seen as an attempt to extend the copyright term. Attard had criticised this action only as a "question of money",[58] and Ertzscheid concurred, stating, "It [the diary] belongs to everyone. And it is up to each to measure its importance."[59]
Concentration camps were top priority in the conference. ""Nazis would trap Jews in ghettos'' said Himmler. Then they were taken to death camps. Auschwitz mainly. They killed 1 to 3 million people there. '' Under proper guidance in the Final Solution the Jews are to be relocated for appropriate  labor in the east. Able-bodied Jews will be separated according to sex. Then taken in large work columns to work on roads of course many will die of natural causes.'' Himmler said this during the conference.
Whereas Christopher Browning places the Nazi plan to exterminate the Jews in the context of the Wehrmacht victories on the Eastern front, Cesarani argues that the German subsequent realisation that there would be no swift victory over the Soviet Union "scuppered the last territorial 'solution' still on the table: expulsion to Siberia".[119] Germany's declaration of war on the United States on December 11, 1941, "meant that holding European Jews hostage to deter the US from entering the conflict was now pointless. As Joseph Goebbels put it when he summarised a secret speech Hitler made on 12 December 1941: 'The world war is here, the destruction of the Jews must be the inevitable consequence'."[119][120] Cesarani concludes, the Holocaust "was rooted in anti-Semitism, but it was shaped by war".[119] The fact that the Nazis were, ultimately, so successful in killing between five and six million Jews was not due to the efficiency of the Third Reich or the clarity of their policies. "Rather, the catastrophic rate of killing was due to German persistence … and the duration of the murderous campaigns. This last factor was largely a consequence of allied military failure."[121]

The manuscript, written on loose sheets of paper, was found strewn on the floor of the hiding place by Miep Gies and Bep Voskuijl after the family's arrest,[17] but before their rooms were ransacked by the Dutch police and the Gestapo. They were kept safe, and given to Otto Frank after the war, with the original notes, when Anne's death was confirmed in the spring of 1945.[citation needed]
^ Jump up to: a b Pohl, Dieter. Hans Krueger and the Murder of the Jews in the Stanislawow Region (Galicia) (PDF). pp. 12–13, 17–18, 21 – via Yad It is impossible to determine what Krueger's exact responsibility was in connection with 'Bloody Sunday' [massacre of 12 October 1941]. It is clear that a massacre of such proportions under German civil administration was virtually unprecedented.
As the tide of World War II turned against the Nazis, they began a systematic plan to eliminate or "liquidate" the ghettos they had established, by a combination of mass murder on the spot and transferring the remaining residents to extermination camps. When the Nazis attempted to liquidate the Warsaw Ghetto on April 13, 1943, the remaining Jews fought back in what has become known as the Warsaw Ghetto Uprising. The Jewish resistance fighters held out against the entire Nazi regime for 28 days, longer than many European countries had been able to withstand Nazi conquest.
This was more than an exaggerated adolescent flourish. She had already intuited what greatness in literature might mean, and she clearly sensed the force of what lay under her hand in the pages of her diary: a conscious literary record of frightened lives in daily peril; an explosive document aimed directly at the future. In her last months, she was assiduously polishing phrases and editing passages with an eye to postwar publication. Het Achterhuis, as she called her manuscript, in Dutch—“the house behind,” often translated as “the secret annex”—was hardly intended to be Anne Frank’s last word; it was conceived as the forerunner work of a professional woman of letters.
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.
It might be noted that, to a surprising extent, much about Hitler’s precise knowledge of the Holocaust remains unclear. For instance, we do not know if Hitler ever saw photographs or newsreels of the killing process, or, indeed, just how comprehensive and brutally frank were Himmler’s reports to Hitler. We have agendas of face-to-face meetings between Hitler and Himmler, at which the Holocaust was to be discussed, but no memorializations or minutes of such meetings. Most of the senior Nazis who were tried at Nuremberg in 1945-1946 (few of whom had any immediate involvement in the killing of Jews) had apparently never seen photographic evidence of the horrors of the concentration camps until their trials; they appeared to be genuinely shocked when newsreels of Belsen and Buchenwald were shown to the court.
In the photo below, Captain Franz Hoessler is standing in front of a load of corpses of prisoners who died from typhus at Bergen-Belsen. He is speaking into a microphone for a documentary film made by the British after the Bergen-Belsen camp was turned over to them by Heinrich Himmler on April 15, 1945. He is wearing his SS uniform, but the insignia of his military rank has been removed. Hoessler was convicted by the British and hanged on December 13, 1945 for war crimes that he had committed at Auschwitz-Birkenau, including his participation in the selection of prisoners to be gassed.
In 1933, Jews in Germany numbered around 525,000, or only 1 percent of the total German population. During the next six years, Nazis undertook an “Aryanization” of Germany, dismissing non-Aryans from civil service, liquidating Jewish-owned businesses and stripping Jewish lawyers and doctors of their clients. Under the Nuremberg Laws of 1935, anyone with three or four Jewish grandparents was considered a Jew, while those with two Jewish grandparents were designated Mischlinge (half-breeds).
The photo below shows Dr. Josef Mengele with Rudolf Hoess and Josef Kramer relaxing at Solahuette, the SS retreat near Birkenau. Kramer was the Commandant at Birkenau in 1944 when this photo was taken. In December 1944, he was transferred to Bergen-Belsen, which then became a concentration camp. The Bergen-Belsen camp had previously been a holding camp for Jews who were available for exchange with the Allies for German civilians held in British and American prisons. Hoess was the Commander of the SS garrison at Auschwitz in 1944.
To carry out the mass murder of an estimated two million Jews, Globocnik created a Department on his staff for Operation Reinhard. One of his assistants, SS Major Hermann Höfle, would coordinate the deportation of the Jews with local civilian and SS and police authorities. Criminal Police Captain Christian Wirth, a veteran of the "Euthanasia" program, established under Globocnik's supervision three killing centers in German-occupied Poland: Belzec, Sobibor, and Treblinka II. Globocnik and his staff managed the mass murder of up to 1,700,000 Jews in the Operation Reinhard killing centers and in shooting operations throughout the Generalgouvernement. The vast majority of the victims were Polish Jews, although German, Austrian, Czech, Dutch, French, Yugoslav, and Greek Jews also died in the Reinhard killing centers.
Yugoslavia and Greece were invaded in April 1941 and surrendered before the end of the month. Germany and Italy divided Greece into occupation zones but did not eliminate it as a country. Yugoslavia, home to around 80,000 Jews, was dismembered; regions in the north were annexed by Germany and regions along the coast made part of Italy. The rest of the country was divided into the Independent State of Croatia, nominally an ally of Germany, and Serbia, which was governed by a combination of military and police administrators.[167] According to historian Jeremy Black, Serbia was declared free of Jews in August 1942.[168] Croatia's ruling party, the Ustashe, killed the country's Jews, and killed or expelled Orthodox Christian Serbs and Muslims.[167] Jews and Serbs alike were "hacked to death and burned in barns", according to Black. One difference between the Germans and Croatians was that the Ustashe allowed its Jewish and Serbian victims to convert to Catholicism so they could escape death.[168]
The killings continued uninterrupted. On 12 October 1941, in Stanisławów, some 10,000–12,000 Jewish men, women, and children were shot at the Jewish cemetery by the German uniformed SS-men and Ukrainian Auxiliary Police during the so-called "Bloody Sunday" (de).[64] The shooters began firing at 12 noon and continued without stopping by taking turns. There were picnic tables set up on the side with bottles of vodka and sandwiches for those who needed to rest from the deafening noise of gunfire.[65] It was the single largest massacre of Polish Jews in Generalgouvernement prior to mass gassings of Aktion Reinhard, which commenced at Bełżec in March 1942. Notably, the extermination operations in Chełmno had begun on 8 December 1941, one-and-a-half month before Wannsee, but Chełmno – located in Reichsgau Wartheland – was not a part of Reinhard, and neither was Auschwitz-Birkenau functioning as an extermination center until November 1944 in Polish lands annexed by Hitler and added to Germany proper.[65][66]
The Polish government-in-exile in London learned about the extermination camps from the Polish leadership in Warsaw, who from 1940 "received a continual flow of information about Auschwitz", according to historian Michael Fleming.[333] This was in large measure thanks to Captain Witold Pilecki of the Polish Home Army, who allowed himself to be arrested in Warsaw and spent 945 days in Auschwitz from September 1940 until April 1943, organizing the resistance movement inside the camp.[334]
From 1933 until 1938, most of the people held in concentration camps were political prisoners and people the Nazis labeled as "asocial." These included the disabled, the homeless, and the mentally ill. After Kristallnacht in 1938, the persecution of Jews became more organized. This led to the exponential increase in the number of Jews sent to concentration camps.

On March 28, 1944, a radio broadcast from the Dutch government-in-exile in London urged the Dutch people to keep diaries, letters, and other items that would document life under German occupation. Prompted by this announcement, Anne began to edit her diary, hoping to publish it after the war under the title "The Secret Annex." From May 20 until her arrest on August 4, 1944, she transferred nearly two-thirds of her diary from her original notebooks to loose pages, making various revisions in the process.
When an outbreak of noma (a gangrenous bacterial disease of the mouth and face) struck the Romani camp in 1943, Mengele initiated a study to determine the cause of the disease and develop a treatment. He enlisted the assistance of prisoner Dr. Berthold Epstein, a Jewish pediatrician and professor at Prague University. The patients were isolated in a separate barracks and several afflicted children were killed so that their preserved heads and organs could be sent to the SS Medical Academy in Graz and other facilities for study. This research was still ongoing when the Romani camp was liquidated and its remaining occupants killed in 1944.[2]