As Soviet troops approached Auschwitz in January 1945, most of its population was sent west on a death march. The remaining prisoners were liberated on 27 January 1945, a day commemorated as International Holocaust Remembrance Day. In the following decades, survivors such as Primo Levi, Viktor Frankl, and Elie Wiesel wrote memoirs of their experiences in Auschwitz, and the camp became a dominant symbol of the Holocaust. In 1947 Poland founded the Auschwitz-Birkenau Memorial and Museum on the site of Auschwitz I and II, and in 1979 it was named a World Heritage Site by UNESCO.

On the two occasions I have returned to Auschwitz, in 1995 and 2011, although I haven’t got memories as such of the time I spent there, something is triggered deep inside me, both physically and in my inner being. I get very nervous and the death, the cold, the expanse and the emptiness of it swamps me – it’s a feeling that it’s hard to explain but it’s everywhere. I can feel the burnt earth everywhere I walk.

Although Nazism is often seen as a reactionary movement, it did not seek a return of Germany to the pre-Weimar monarchy, but instead looked much further back to a mythic halcyon Germany which never existed. It has also been seen – as it was by the German-American scholar Franz Leopold Neumann – as the result of a crisis of capitalism which manifested as a "totalitarian monopoly capitalism". In this view Nazism is a mass movement of the middle class which was in opposition to a mass movement of workers in socialism and its extreme form, Communism.[277] Historian Karl Dietrich Bracher, however, argues that,
Many scholars think Nazism was a form of far-right politics.[1] Nazism is a form of fascism and uses biological racism and antisemitism. Much of the philosophy of this movement was based on an idea that the 'Aryan race', the term they used for what we today call Germanic people, was better than all other races, and had the greatest ability to survive. According to the racist and ableist ideas of Nazism, the Germanic peoples were the Herrenvolk (master race).[2] The 'inferior' races and people - the Jews, Roma people, Slavs, disabled and blacks - were classified as Untermenschen (sub-humans).[3]

Early in the Nazi regime of Adolf Hitler, Anne’s father, Otto Frank (1889–1980), a German businessman, took his wife and two daughters to live in Amsterdam. In 1941, after German forces occupied the Netherlands, Anne was compelled to transfer from a public school to a Jewish one. On June 12, 1942, she received a red-and-white plaid diary for her 13th birthday. That day she began writing in the book: “I hope I will be able to confide everything to you, as I have never been able to confide in anyone, and I hope you will be a great source of comfort and support.”
Otto, the only survivor of the Franks, returned to Amsterdam after the war to find that her diary had been saved by his secretary, Miep Gies, and his efforts led to its publication in 1947. It was translated from its original Dutch version and first published in English in 1952 as The Diary of a Young Girl, and has since been translated into over 60 languages.
That month, Himmler ordered the evacuation of all camps, charging camp commanders with "making sure that not a single prisoner from the concentration camps falls alive into the hands of the enemy".[240] Beginning on 17 January, 56,000–58,000 Auschwitz detainees—over 20,000 from Auschwitz I and II, over 30,000 from subcamps, and two-thirds of them Jews—were evacuated under guard, largely on foot, in severe winter conditions, heading west.[241][242] Around 2,200 were evacuated by rail from two subcamps; fewer than 9,000 were left behind, deemed too sick to move.[243] During the marches, camp staff shot anyone too sick or exhausted to continue, or anyone stopping to urinate or tie a shoelace. SS officers walked behind the marchers killing anyone lagging behind who had not already been shot.[235] Peter Longerich estimates that a quarter of the detainees were thus killed.[236] Those who managed to walk to Wodzisław Śląski and Gliwice were sent on open freight cars, without food, to concentration camps in Germany: Bergen-Belsen, Buchenwald, Dachau, Flossenburg, Gross-Rosen, Mauthausen, Dora-Mittelbau, Ravensbruck, and Sachsenhausen.[244]

Upon being appointed Chancellor in 1933, Hitler promised measures to increase employment, protect the German currency, and promote recovery from the Great Depression. These included an agrarian settlement program, labor service, and a guarantee to maintain health care and pensions.[220] But above all, his priority was rearmament, and the buildup of the German military in preparation for an eventual war to conquer Lebensraum in the East.[221] Thus, at the beginning of his rule, Hitler said that “the future of Germany depends exclusively and only on the reconstruction of the Wehrmacht. All other tasks must cede precedence to the task of rearmament.”[221] This policy was implemented immediately, with military expenditures quickly growing far larger than the civilian work-creation programs. As early as June 1933, military spending for the year was budgeted to be three times larger than the spending on all civilian work-creation measures in 1932 and 1933 combined.[222] Nazi Germany increased its military spending faster than any other state in peacetime, with the share of military spending rising from 1 percent to 10 percent of national income in the first two years of the regime alone.[223] Eventually, by 1944, it reached as high as 75 percent.[224]
Radical Antisemitism was promoted by prominent advocates of Völkisch nationalism, including Eugen Diederichs, Paul de Lagarde and Julius Langbehn.[69] De Lagarde called the Jews a "bacillus, the carriers of decay ... who pollute every national culture ... and destroy all faiths with their materialistic liberalism" and he called for the extermination of the Jews.[89] Langbehn called for a war of annihilation against the Jews, and his genocidal policies were later published by the Nazis and given to soldiers on the front during World War II.[89] One antisemitic ideologue of the period, Friedrich Lange, even used the term "National Socialism" to describe his own anti-capitalist take on the Völkisch nationalist template.[90]

^ This was the result of either a club foot or osteomyelitis. Goebbels is commonly said to have had club foot (talipes equinovarus), a congenital condition. William L. Shirer, who worked in Berlin as a journalist in the 1930s and was acquainted with Goebbels, wrote in The Rise and Fall of the Third Reich (1960) that the deformity was caused by a childhood attack of osteomyelitis and a failed operation to correct it.

An inmate's first encounter with the camp, if they were being registered and not sent straight to the gas chamber, would be at the prisoner reception centre, where they were tattooed, shaved, disinfected, and given their striped prison uniform. Built between 1942 and 1944, the center contained a bathhouse, laundry, and 19 gas chambers for delousing clothes. Debórah Dwork and Robert Jan van Pelt write that inmates would then leave this area via a porch that faced the gate with the Arbeit macht frei sign. The prisoner reception center of Auschwitz I became the visitor reception center of the Auschwitz-Birkenau Memorial and Museum.[20]
Hitler ruled Germany autocratically by asserting the Führerprinzip ("leader principle"), which called for absolute obedience of all subordinates. He viewed the government structure as a pyramid, with himself—the infallible leader—at the apex. Party rank was not determined by elections, and positions were filled through appointment by those of higher rank.[190] The party used propaganda to develop a cult of personality around Hitler.[191] Historians such as Kershaw emphasise the psychological impact of Hitler's skill as an orator.[192] Roger Gill states: "His moving speeches captured the minds and hearts of a vast number of the German people: he virtually hypnotized his audiences".[193]
As a result of the Holocaust, the term "concentration camp" carries many of the connotations of "extermination camp" and is sometimes used synonymously. Because of these ominous connotations, the term "concentration camp", originally itself a euphemism, has been replaced by newer terms such as internment camp, resettlement camp, detention facility, etc., regardless of the actual circumstances of the camp, which can vary a great deal.