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.
The rise of Nazism in Germany during the 1930s—and the conviction that Hitler could be defeated only by military force—prompted Einstein rethink his strict pacifist views. Increasing numbers of Jewish refugees were fleeing Germany, bringing with them horrific tales of Nazi persecution; Einstein, who was also Jewish, left for the United States in 1932.
In 1933, when Adolf Hitler assumed power in the German government, the usage of "Nazi" diminished in Germany, although Austrian anti-Nazis continued to use the term,[18] and the use of "Nazi Germany" and "Nazi regime" was popularised by anti-Nazis and German exiles abroad. Thereafter, the term spread into other languages and eventually was brought back to Germany after World War II.[22] In English, the term is not considered slang, and has such derivatives as Nazism and denazification.
Hitler sent military supplies and assistance to the Nationalist forces of General Francisco Franco in the Spanish Civil War, which began in July 1936. The German Condor Legion included a range of aircraft and their crews, as well as a tank contingent. The aircraft of the Legion destroyed the city of Guernica in 1937.[63] The Nationalists were victorious in 1939 and became an informal ally of Nazi Germany.[64]
By bringing color to the original black and white registration photos and telling prisoners’ stories, “Faces of Auschwitz” commemorates the memory of those who were murdered in the name of bigotry and hate. It acts as both a memorial to their passing and a warning to the world at a time when the memory of the Holocaust becomes increasingly abstract and remote.

In September 1933, an important policy document known as the Prussian Memorandum began circulating among lawmakers and jurists of the Third Reich. The Nazi regime was still in its infancy; Hitler had been named chancellor just nine months prior, the result of a power-sharing arrangement with nationalist conservatives who thought they could control the mercurial Austrian. Following the Reichstag Fire in February of that year, Hitler had assumed emergency powers and within weeks usurped the authority of the parliament. By that critical autumn, the Third Reich had begun Nazifying the German legal code. The Prussian Memorandum that passed between Nazi legal hands was an early blueprint for the 1935 Nuremberg Laws, which stripped Jews of their citizenship and criminalized sexual relations between Germans and those thought to have impure blood. It was the foundational text of Nazi legal thinking. Incredibly, the Prussian Memorandum expressly cited the gold standard of racist lawmaking at the time: the United States of America.

The concentration camps make sense only if they are understood as products not of reason but of ideology, which is to say, of fantasy. Nazism taught the Germans to see themselves as a beleaguered nation, constantly set upon by enemies external and internal. Metaphors of infection and disease, of betrayal and stabs in the back, were central to Nazi discourse. The concentration camp became the place where those metaphorical evils could be rendered concrete and visible. Here, behind barbed wire, were the traitors, Bolsheviks, parasites, and Jews who were intent on destroying the Fatherland.

On 20 July 1932, the Prussian government was ousted by a coup, the Preussenschlag; a few days later at the July 1932 Reichstag election the Nazis made another leap forward, polling 37.4% and becoming the largest party in parliament by a wide margin. Furthermore, the Nazis and the Communists between them won 52% of the vote and a majority of seats. Since both parties opposed the established political system and neither would join or support any ministry, this made the formation of a majority government impossible. The result was weak ministries governing by decree. Under Comintern directives, the Communists maintained their policy of treating the Social Democrats as the main enemy, calling them "social fascists", thereby splintering opposition to the Nazis.[74] Later, both the Social Democrats and the Communists accused each other of having facilitated Hitler's rise to power by their unwillingness to compromise.
Stos said he survived by making himself useful. Prisoners had a better chance of staying alive if they worked under a roof—in a kitchen or an administration building—or had a skill, such as training in medicine or engineering, that made them hard to replace. “The hunger was hellish, and if you could work you could get something to eat,” Stos said. Having grown up in the countryside, he could do a little bit of everything, from pouring concrete to cutting grass. I pressed him for details of his time in the camp, but he spoke only of the work. “I had eight different professions at Auschwitz,” he said. “I knew how to take care of myself. I avoided the worst of it.”
The concept of the Aryan race, which the Nazis promoted, stems from racial theories asserting that Europeans are the descendants of Indo-Iranian settlers, people of ancient India and ancient Persia.[80] Proponents of this theory based their assertion on the fact that words in European languages and words in Indo-Iranian languages have similar pronunciations and meanings.[80] Johann Gottfried Herder argued that the Germanic peoples held close racial connections to the ancient Indians and the ancient Persians, who he claimed were advanced peoples that possessed a great capacity for wisdom, nobility, restraint and science.[80] Contemporaries of Herder used the concept of the Aryan race to draw a distinction between what they deemed to be "high and noble" Aryan culture versus that of "parasitic" Semitic culture.[80]
In 1963, Otto Frank and his second wife, Elfriede Geiringer-Markovits, set up the Anne Frank Fonds as a charitable foundation, based in Basel, Switzerland. The Fonds raises money to donate to causes "as it sees fit". Upon his death, Otto willed the diary's copyright to the Fonds, on the provision that the first 80,000 Swiss francs in income each year was to be distributed to his heirs. Any income above this figure is to be retained by the Fonds for use on whatever projects its administrators considered worthy. It provides funding for the medical treatment of the Righteous Among the Nations on a yearly basis. The Fonds aims to educate young people against racism, and loaned some of Anne Frank's papers to the United States Holocaust Memorial Museum in Washington for an exhibition in 2003. Its annual report that year outlined its efforts to contribute on a global level, with support for projects in Germany, Israel, India, Switzerland, the United Kingdom, and the United States.[105]

Use of the word "concentration" came from the idea of confining people in one place because they belong to a group that is considered undesirable in some way. The term itself originated in 1897 when the "reconcentration camps" were set up in Cuba by General Valeriano Weyler. In the past, the U.S. government had used concentration camps against Native Americans and the British had also used them during the Second Boer War. Between 1904 and 1908, the Schutztruppe of the Imperial German Army operated concentration camps in German South-West Africa (now Namibia) as part of its genocide of the Herero and Namaqua peoples. The Shark Island Concentration Camp in Lüderitz was the largest camp and the one with the harshest conditions.