The two largest groups of prisoners in the camps, both numbering in the millions, were the Polish Jews and the Soviet prisoners of war (POWs) held without trial or judicial process. There were also large numbers of Romani people, ethnic Poles, Serbs, political prisoners, homosexuals, people with disabilities, Jehovah's Witnesses, Catholic clergy, Eastern European intellectuals and others (including common criminals, as the Nazis declared). In addition, a small number of Western Allied aviators were sent to concentration camps as punishment for spying. Western Allied POWs who were Jews, or who were suspected of being Jews by the Nazis, were usually sent to ordinary POW camps; however, a small number of them were sent to concentration camps because of antisemitic policies.
Nazism emphasized German nationalism, including both irredentism and expansionism. Nazism held racial theories based upon a belief in the existence of an Aryan master race that was superior to all other races. The Nazis emphasised the existence of racial conflict between the Aryan race and others—particularly Jews, whom the Nazis viewed as a mixed race that had infiltrated multiple societies and was responsible for exploitation and repression of the Aryan race. The Nazis also categorised Slavs as Untermensch (sub-human).
Slovak rabbi Michael Dov Weissmandl was the first to suggest, in May 1944, that the Allies bomb the rails leading to Auschwitz. At one point British Prime Minister Winston Churchill ordered that such a plan be prepared, but he was told that precision bombing the camp to free the prisoners or disrupt the railway was not technically feasible.[not in citation given] In 1978, historian David Wyman published an essay in Commentary entitled "Why Auschwitz Was Never Bombed", arguing that the United States Army Air Forces had the capability to attack Auschwitz and should have done so; he expanded his arguments in his book The Abandonment of the Jews: America and the Holocaust 1941–1945 (1984). Wyman argued that, since the IG Farben plant at Auschwitz III had been bombed three times between August and December 1944 by the US Fifteenth Air Force in Italy, it would have been feasible for the other camps or railway lines to be bombed too. Bernard Wasserstein's Britain and the Jews of Europe (1979) and Martin Gilbert's Auschwitz and the Allies (1981) raised similar questions about British inaction. Since the 1990s, other historians have argued that Allied bombing accuracy was not sufficient for Wyman's proposed attack, and that counterfactual history is an inherently problematic endeavor.
Anneliese (Annelies) Marie Frank was born June 12, 1929 to Otto and Edith (Holländer) Frank in Frankfurt, Germany. Her older sister, Margot, was born February 16, 1926. Her father, Otto, was an officer in the German army during World War I on the Western Front and began working for the family bank in Aachen, Germany, after returning from the war. The bank collapsed in the early 1930s during Germany’s economic depression, a depression that further enflamed long-standing anti-Semitism and gave rise to Adolf Hitler’s National Socialist German Workers Party—the Nazis.
In March 1941, Himmler ordered a second, larger complex to be built next to the original camp. It was called Auschwitz II - Birkenau. The camp at Birkenau was divided into subsections surrounded by electric fences with barbed wire. During 1943 and 1944 the BIIb section became the location of the „Terezín family camp“. At its summit, Birkenau had over 100 000 inmates. In March 1942, the Auschwitz III camp was set up at nearby Monowitz, also known as Buna Monowitz. German company I.G. Farben set up a synthetic rubber factory there, in which it used the prisoners' slave labour. Auschwitz also had a further 45 auxiliary camps, where prisoners were forced to engage in slave labour, mostly for German companies.
A concentration camp is a place where people are detained or confined without trial. Prisoners were kept in extremely harsh conditions and without any rights. In Nazi Germany after 1933, and across Nazi controlled Europe between 1938 and 1945, concentration camps became a major way in which the Nazis imposed their control. The first concentration camps in Germany were set up as detention centres to stop any opposition to the Nazis by so called ‘enemies of the state’. These people included communists, socialists, Jehovah’s Witnesses, homosexuals, Roma, and so called ‘asocials’.
The concentration camps increasingly became sites where the SS authorities could kill targeted groups of real or perceived enemies of Nazi Germany. They also came to serve as holding centers for a rapidly growing pool of forced laborers used for SS construction projects, SS-commissioned extractive industrial sites, and, by 1942, the production of armaments, weapons, and related goods for the German war effort.
The Theresienstadt family camp, which existed between September 1943 and July 1944, served a different purpose. A group of around 5,000 Jews had arrived in Auschwitz in September 1943 from the Theresienstadt ghetto in Czechoslovakia. The families were allowed to stay together, their heads were not shaved, and they could wear their own clothes. Correspondence between Adolf Eichmann's office and the International Red Cross suggests that the Germans set up the camp to cast doubt on reports, in time for a planned Red Cross visit to Auschwitz, that mass murder was taking place in Auschwitz. A second group of 5,000 arrived from Theresienstadt in December 1943. On 7 March 1944, the first group was sent to the gas chamber at crematorium III; before they died, they were asked to send postcards to relatives, postdated to 25 March. This was the largest massacre of Czechoslovak citizens in history. News of the liquidation reached the Czechoslovak government-in-exile, which initiated diplomatic manoeuvers to save the remaining Jews. After the Red Cross visited Theresienstadt in June 1944 and were persuaded by the SS that no deportations were taking place from there, about 3,500 Jews were removed from the family camp to other sections of Auschwitz. The remaining 6,500 were murdered in the gas chambers between 10 and 12 July 1944.
Both national carrier PKP Intercity and regional line PolRegio provide rail service to Oświęcim station, with a travel time usually of an hour and 45 minutes from Kraków, and fifty minutes from Katowice. A bus can then be caught to Auschwitz I where the state museum is located (as there is a bus stop in front of the railway station), or you can walk there (approx 1.5 km) in about 20-25 minutes. If visitors decide to walk, leave the station, turn immediately right, and follow ul. Wyzwolenia for five minutes. At the first roundabout, follow the signs to the Muzeum Auschwitz, and turn left on ul. Stanisławy Leszczyńskiej.
“There is, of course, all possible types of administration done by the Germans of the time,” Thijs Baynes, the filmmaker behind the project, told the Guardian. “And there is an even bigger circle of circumstantial evidence. What [Dutch Nazi party] members were in the neighborhood? What connections were with the Gestapo? Where were Gestapo agents living?
The lead editors of the Encyclopedia of Camps and Ghettos, 1933–1945 of the United States Holocaust Memorial Museum, Geoffrey Megargee and Martin Dean, cataloged some 42,500 Nazi ghettos and camps throughout Europe, spanning German-controlled areas from France to Russia and Germany itself, operating from 1933 to 1945. They estimate that 15 million to 20 million people died or were imprisoned in the sites.
After the failure of the Beer Hall Putsch in 1923, and his subsequent trial and imprisonment, Hitler decided that the way for the Nazi Party to achieve power was not through insurrection, but through legal and quasi-legal means. This did not sit well with the brown-shirted stormtroopers of the SA, especially those in Berlin, who chafed under the restrictions that Hitler placed on them, and their subordination to the party. This resulted in the Stennes Revolt of 1930-31, after which Hitler made himself the Supreme Commander of the SA, and brought Ernst Röhm back to be their Chief of Staff and keep them in line. The quashing of the SA's revolutionary fervor convinced many businessmen and military leaders that the Nazis had put aside their insurrectionist past, and that Hitler could be a reliable partner 
Otto Frank spent the remainder of his life as custodian of his daughter's legacy, saying, "It's a strange role. In the normal family relationship, it is the child of the famous parent who has the honour and the burden of continuing the task. In my case the role is reversed." He recalled his publisher's explaining why he thought the diary has been so widely read, with the comment, "he said that the diary encompasses so many areas of life that each reader can find something that moves him personally". Simon Wiesenthal expressed a similar sentiment when he said that the diary had raised more widespread awareness of the Holocaust than had been achieved during the Nuremberg Trials, because "people identified with this child. This was the impact of the Holocaust, this was a family like my family, like your family and so you could understand this."
Jerzy Tabeau (prisoner no. 27273, registered as Jerzy Wesołowski) and Roman Cieliczko (no. 27089), both Polish prisoners, escaped on 19 November 1943; Tabeau made contact with the Polish underground and, between December 1943 and early 1944, wrote what became known as the Polish Major's report about the situation in the camp. On 27 April 1944, Rudolf Vrba (no. 44070) and Alfréd Wetzler (no. 29162) escaped to Slovakia, carrying detailed information to the Slovak Jewish Council about the gas chambers. The distribution of the Vrba-Wetzler report, and publication of parts of it in June 1944, helped to halt the deportation of Hungarian Jews to Auschwitz. On 27 May 1944, Arnost Rosin (no. 29858) and Czesław Mordowicz (no. 84216) also escaped to Slovakia; the Rosin-Mordowicz report was added to the Vrba-Wetzler and Tabeau reports to become what is known as the Auschwitz Protocols. The reports were first published in their entirety in November 1944 by the United States War Refugee Board, in a document entitled The Extermination Camps of Auschwitz (Oświęcim) and Birkenau in Upper Silesia.
Since our clothing did not offer enough protection against the prevailing cold—the temperatures were around freezing point—the restriction resulted in many diseases of the respiratory organs. These affected us in two ways: for one, the prisoners with colds were much tormented by coughing, and, for another, the rest of us suffered much from their comforts. In the room in which we were lying penned up together on the straw, with two covers at the most, the snoring alone of the many men produced a noise like a spinning mill. Now the barking and panting noise of the coughing was added to that. We were given only one handkerchief every two weeks. To make matters worse, there was no warm water for washing our handkerchiefs and it was impossible to dry them at the stove.
Born in Frankfurt, Germany, she lived most of her life in or near Amsterdam, Netherlands, having moved there with her family at the age of four and a half when the Nazis gained control over Germany. Born a German national, she lost her citizenship in 1941 and thus became stateless. By May 1940, the Franks were trapped in Amsterdam by the German occupation of the Netherlands. As persecutions of the Jewish population increased in July 1942, the Franks went into hiding in some concealed rooms behind a bookcase in the building where Anne's father, Otto Frank, worked. From then until the family's arrest by the Gestapo in August 1944, she kept a diary she had received as a birthday present, and wrote in it regularly. Following their arrest, the Franks were transported to concentration camps. In October or November 1944, Anne and her sister, Margot, were transferred from Auschwitz to Bergen-Belsen concentration camp, where they died (probably of typhus) a few months later. They were originally estimated by the Red Cross to have died in March, with Dutch authorities setting 31 March as their official date of death, but research by the Anne Frank House in 2015 suggests they more likely died in February.
The Germans isolated all the camps and sub-camps from the outside world and surrounded them with barbed wire fencing. All contact with the outside world was forbidden. However, the area administered by the commandant and patrolled by the SS camp garrison went beyond the grounds enclosed by barbed wire. It included an additional area of approximately 40 square kilometers (the so-called “Interessengebiet” - the interest zone), which lay around the Auschwitz I and Auschwitz II-Birkenau camps.
Last, and perhaps most ominously for our comparisons with the Holocaust, the camps can be the first step toward darker developments, as some have already argued. These “concentration camps” will not lead to gas chambers, but their existence may well lead to the erosion of respect for human rights, the rule of law and government accountability that characterized the Third Reich. Unless, of course, the children are all actors.
At the same time, public interest in the camp has never been higher. Visits have doubled this decade, from 492,500 in 2001 to more than 1 million in 2009. Since Poland joined the European Union in 2004, Krakow has become a popular destination for foreign tourists, and Auschwitz is a must stop on many itineraries. A visit is also part of education programs in Israel, Britain and other countries. On peak days, as many as 30,000 visitors file through the camp’s buildings.
According to Hankes there has been a national shift among white supremacist and neo-Nazi groups. "It wasn't that long ago that we were having conversations about whether the movement was going to age out. You would go to conferences and it would be an audience full of white men in their late 30s and up. Now, you go to the same conferences and they're sold out and the average age has dropped by 20 years," Hankes explained.
“It may be that these, the lines that I am now writing, will be the sole witness to what was my life,” Gradowski writes. “But I shall be happy if only my writings should reach you, citizen of the free world. Perhaps a spark of my inner fire will ignite in you, and even should you sense only part of what we lived for, you will be compelled to avenge us—avenge our deaths! Dear discoverer of these writings! I have a request of you: This is the real reason why I write, that my doomed life may attain some meaning, that my hellish days and hopeless tomorrows may find a purpose in the future.” And then Gradowski tells us what he has seen.
Anne Frank was born in the German city of Frankfurt am Main in 1929. Anne’s sister Margot was three years her senior. Unemployment was high and poverty was severe in Germany, and it was the period in which Adolf Hitler and his party were gaining more and more supporters. Hitler hated the Jews and blamed them for the problems in the country. He took advantage of the rampant antisemitic sentiments in Germany. The hatred of Jews and the poor economic situation made Anne's parents, Otto and Edith Frank, decide to move to Amsterdam. There, Otto founded a company that traded in pectin, a gelling agent for making jam.
After September 1939, with the beginning of the Second World War, concentration camps became places where millions of ordinary people were enslaved as part of the war effort, often starved, tortured and killed. During the war, new Nazi concentration camps for "undesirables" spread throughout the continent. According to statistics by the German Ministry of Justice, about 1,200 camps and subcamps were run in countries occupied by Nazi Germany, while the Jewish Virtual Library estimates that the number of Nazi camps was closer to 15,000 in all of occupied Europe and that many of these camps were run for a limited amount of time before they were closed. Camps were being created near the centers of dense populations, often focusing on areas with large communities of Jews, Polish intelligentsia, Communists or Romani. Since millions of Jews lived in pre-war Poland, most camps were located in the area of the General Government in occupied Poland, for logistical reasons. The location also allowed the Nazis to quickly remove the German Jews from within Germany proper.