In Birkenau, which was built anew on the site of a displaced village, only a small number of historic buildings have survived. Due to the method used in constructing those buildings, planned as temporary structures and erected in a hurry using demolition materials, the natural degradation processes have been accelerating. All efforts are nevertheless being taken to preserve them, strengthen their original fabric and protect them from decay.

Primo Levi suggested Anne Frank is frequently identified as a single representative of the millions of people who suffered and died as she did because "One single Anne Frank moves us more than the countless others who suffered just as she did but whose faces have remained in the shadows. Perhaps it is better that way; if we were capable of taking in all the suffering of all those people, we would not be able to live."[82] In her closing message in Müller's biography of Anne Frank, Miep Gies expressed a similar thought, though she attempted to dispel what she felt was a growing misconception that "Anne symbolises the six million victims of the Holocaust", writing: "Anne's life and death were her own individual fate, an individual fate that happened six million times over. Anne cannot, and should not, stand for the many individuals whom the Nazis robbed of their lives ... But her fate helps us grasp the immense loss the world suffered because of the Holocaust."[88]
And for that purpose it is necessary not to think of the camps simply as a hellscape. Reading Wachsmann’s deeply researched, groundbreaking history of the entire camp system makes clear that Dachau and Buchenwald were the products of institutional and ideological forces that we can understand, perhaps all too well. Indeed, it’s possible to think of the camps as what happens when you cross three disciplinary institutions that all societies possess—the prison, the army, and the factory. Over the several phases of their existence, the Nazi camps took on the aspects of all of these, so that prisoners were treated simultaneously as inmates to be corrected, enemies to be combatted, and workers to be exploited. When these forms of dehumanization were combined, and amplified to the maximum by ideology and war, the result was the Konzentrationlager, or K.L.

Auschwitz became one of the camps used for the mass extermination of Jews. In summer 1941, Heinrich Himmler gave orders to Auschwitz commander Rudolf Höß to build a centre at Auschwitz for the mass murder of Jews. In September 1941, the lethal effects of Zyklon B - a substance normally used for pest control - were first tested and verified there. Later, four large gas chambers were built at Birkenau, capable of killing up to six thousand people each day. The gas chambers were disguised as showers, meant to persuade the victims that these were disinfection measures which they had to undergo before they were sent to work in the camp.

^ Andrew Szanajda "The restoration of justice in postwar Hesse, 1945–1949" p. 25 "In practice, it signified intimidating the public through arbitrary psychological terror, operating like the courts of the Inquisition." "The Sondergerichte had a strong deterrent effect during the first years of their operation, since their rapid and severe sentencing was feared."

After Nazi Germany unleashed World War II in September 1939, vast new territorial conquests and larger groups of potential prisoners led to the rapid expansion of the concentration camp system to the east. The war did not change the original function of the concentration camps as detention sites for the incarceration of political enemies. The climate of national emergency that the conflict granted to the Nazi leaders, however, permitted the SS to expand the functions of the camps.
The Nazis took things further, one step at the time. Jews had to start wearing a Star of David on their clothes and there were rumours that all Jews would have to leave the Netherlands. When Margot received a call-up to report for a so-called ‘labour camp’ in Nazi Germany on 5 July 1942, her parents were suspicious. They did not believe the call-up was about work and decided to go into hiding the next day in order to escape persecution.  
^ Andrew Szanajda "The restoration of justice in postwar Hesse, 1945–1949" p. 25 "In practice, it signified intimidating the public through arbitrary psychological terror, operating like the courts of the Inquisition." "The Sondergerichte had a strong deterrent effect during the first years of their operation, since their rapid and severe sentencing was feared."
Hitler added to Pan-Germanic aspirations the almost mystical fanaticism of a faith in the mission of the German race and the fervour of a social revolutionary gospel. This gospel was most fully expressed in Hitler’s personal testament Mein Kampf (1925–27; “My Struggle”), in which he outlined both his practical aims and his theories of race and propaganda.
A Nazi era school textbook for German students entitled Heredity and Racial Biology for Students written by Jakob Graf described to students the Nazi conception of the Aryan race in a section titled "The Aryan: The Creative Force in Human History".[136] Graf claimed that the original Aryans developed from Nordic peoples who invaded ancient India and launched the initial development of Aryan culture there that later spread to ancient Persia and he claimed that the Aryan presence in Persia was what was responsible for its development into an empire.[136] He claimed that ancient Greek culture was developed by Nordic peoples due to paintings of the time which showed Greeks who were tall, light-skinned, light-eyed, blond-haired people.[136] He said that the Roman Empire was developed by the Italics who were related to the Celts who were also a Nordic people.[136] He believed that the vanishing of the Nordic component of the populations in Greece and Rome led to their downfall.[136] The Renaissance was claimed to have developed in the Western Roman Empire because of the Germanic invasions that brought new Nordic blood to the Empire's lands, such as the presence of Nordic blood in the Lombards (referred to as Longobards in the book); that remnants of the western Goths were responsible for the creation of the Spanish Empire; and that the heritage of the Franks, Goths and Germanic peoples in France was what was responsible for its rise as a major power.[136] He claimed that the rise of the Russian Empire was due to its leadership by people of Norman descent.[136] He described the rise of Anglo-Saxon societies in North America, South Africa and Australia as being the result of the Nordic heritage of Anglo-Saxons.[136] He concluded these points by saying: "Everywhere Nordic creative power has built mighty empires with high-minded ideas, and to this very day Aryan languages and cultural values are spread over a large part of the world, though the creative Nordic blood has long since vanished in many places".[136]
The Soviet troops found grisly evidence of the horror. About 7,000 starving prisoners were found alive in the camp. Millions of items of clothing that once belonged to men, women and children were discovered along with 6,350kg of human hair. The Auschwitz museum holds more than 100,000 pairs of shoes, 12,000 kitchen utensils, 3,800 suitcases and 350 striped camp garments.
The Nazis claimed that communism was dangerous to the well-being of nations because of its intention to dissolve private property, its support of class conflict, its aggression against the middle class, its hostility towards small business and its atheism.[246] Nazism rejected class conflict-based socialism and economic egalitarianism, favouring instead a stratified economy with social classes based on merit and talent, retaining private property and the creation of national solidarity that transcends class distinction.[247] Historians Ian Kershaw and Joachim Fest argue that in post–World War I Germany, the Nazis were one of many nationalist and fascist political parties contending for the leadership of Germany's anti-communist movement.
Nazism subscribed to theories of racial hierarchy and Social Darwinism, identifying the Germans as a part of what the Nazis regarded as an Aryan or Nordic master race.[3] It aimed to overcome social divisions and create a German homogeneous society based on racial purity which represented a people's community (Volksgemeinschaft). The Nazis aimed to unite all Germans living in historically German territory, as well as gain additional lands for German expansion under the doctrine of Lebensraum and exclude those who they deemed either community aliens or "inferior" races.
The first camp in Germany, Dachau, was founded in March 1933.[13] The press announcement said that "the first concentration camp is to be opened in Dachau with an accommodation for 5,000 people. All Communists and – where necessary – Reichsbanner and Social Democratic functionaries who endanger state security are to be concentrated there, as in the long run it is not possible to keep individual functionaries in the state prisons without overburdening these prisons."[13] Dachau was the first regular concentration camp established by the German coalition government of National Socialist Workers' Party (Nazi Party) and the Nationalist People's Party (dissolved on 6 July 1933). Heinrich Himmler, then Chief of Police of Munich, officially described the camp as "the first concentration camp for political prisoners."[13]