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.
No one knows better than you yourself, my Führer, that you were never the seventh member of the party, but at best the seventh member of the committee... And a few years ago I had to complain to a party office that your first proper membership card of the DAP, bearing the signatures of Schüssler and myself, was falsified, with the number 555 being erased and number 7 entered.
The six extermination camps were established within a very short time. From December 1941 to December 1942 Chelmno, Belzec, Treblinka, Sobibor, Auschwitz-Birkenau and Majdanek all became operational. These sites were chosen because they were all situated near railway lines, in quiet rural areas of “far away” Poland, outside the spotlight of German and international public opinions.
The term "National Socialism" arose out of attempts to create a nationalist redefinition of "socialism", as an alternative to both international socialism and free market capitalism. Nazism rejected the Marxist concept of class conflict, opposed cosmopolitan internationalism, and sought to convince all parts of the new German society to subordinate their personal interests to the "common good", accepting political interests as the main priority of economic organization.
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". 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. 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. He said that the Roman Empire was developed by the Italics who were related to the Celts who were also a Nordic people. He believed that the vanishing of the Nordic component of the populations in Greece and Rome led to their downfall. 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. He claimed that the rise of the Russian Empire was due to its leadership by people of Norman descent. 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. 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".
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 
The similarities between the Rivesaltes camp and the Trump administration’s camps for children should already be apparent: a temporary, insufficiently conceived facility designed to prevent foreigners from entering the country. And, as with Rivesaltes, officials have no real plan for what to do with them. Moreover, as historian Terrence Peterson emphasized, Rivesaltes “remained the go-to space for the French government simply because it existed. The infrastructure was in place that allowed the French state to simply shift unwanted populations into a controlled space rather than dealing substantively with changing migration policy or dealing with the human consequences of bad policy.”
^ According to Raeder, "Our Air Force could not be counted on to guard our transports from the British Fleets, because their operations would depend on the weather, if for no other reason. It could not be expected that even for a brief period our Air Force could make up for our lack of naval supremacy." Raeder 2001, pp. 324–325. Grand Admiral Karl Dönitz believed air superiority was not enough and admitted, "We possessed neither control of the air or the sea; nor were we in any position to gain it." Dönitz 2012, p. 114.
This is not the limit of the horrors of Auschwitz I. It was also the site of disturbing medical experimentation on Jewish and Roma prisoners, including castration, sterilisation and testing how they were affected by contagious diseases. The infamous “Angel of Death”, SS captain Dr Josef Mengele, was one of the physicians practising here. His particular interest was experimenting on twins.
The fortified walls, barbed wire, platforms, barracks, gallows, gas chambers and cremation ovens show the conditions within which the Nazi genocide took place in the former concentration and extermination camp of Auschwitz-Birkenau, the largest in the Third Reich. According to historical investigations, 1.5 million people, among them a great number of Jews, were systematically starved, tortured and murdered in this camp, the symbol of humanity's cruelty to its fellow human beings in the 20th century.
From 1928 onward, the Nazi Party's growth into a large national political movement was dependent on middle class support, and on the public perception that it "promised to side with the middle classes and to confront the economic and political power of the working class."  The financial collapse of the white collar middle-class of the 1920s figures much in their strong support of Nazism. Although the Nazis continued to make appeals to "the German worker," historian Timothy Mason concludes that "Hitler had nothing but slogans to offer the working class."
Many of the prisoners died in the concentration camps due to deliberate maltreatment, disease, starvation, and overwork, or they were executed as unfit for labor. Prisoners were transported in inhumane conditions by rail freight cars, in which many died before reaching their final destination. The prisoners were confined in the boxcars for days or even weeks, with little or no food or water. Many died of dehydration in the intense heat of summer or froze to death in winter. Concentration camps also existed in Germany itself, and while they were not specifically designed for systematic extermination, many of their inmates perished because of harsh conditions or they were executed.