Both Anne and Margot kept diaries while they were in hiding, although Margot’s diaries were never found. Living in hiding meant the group also lived in constant fear of being discovered—they were unable to go outside, had to be quiet, conceal any lights used after sunset, and keep the curtains and windows closed during the day. They lived in extremely close quarters with each other and were completely dependent on Miep Gies, Johannes Kleiman, Victor Kugler, and Bep Voskuijl, Otto’s employees, for food, supplies, and moral support. The group in hiding got news from the radio and from these helpers, who also brought books and gifts. Anne wrote, "They come upstairs every day and talk to the men about business and politics, to the women about food and wartime difficulties and to the children about books and newspapers. They put on their most cheerful expressions, bring flowers and gifts for birthdays and holidays and are always ready to do what they can."
When the day of release came we were at first searched most carefully for any sort of written notes. Notes from our family—a short, well-watched exchange was allowed every week—had to be left behind. Then we were permitted to put on our civilian clothes, but how they looked! They had been disinfected under high steam pressure and had been wrapped in bundles. They looked like the outfits of tramps, all creased and out of shape. Soft felt hats had turned into cardboard-like monsters no longer usable, and even on our short trip back they could not be worn.
In late January 1945, SS and police officials forced 4,000 prisoners to evacuate Blechhammer on foot. Blechhammer was a subcamp of Auschwitz-Monowitz. The SS murdered about 800 prisoners during the march to the Gross-Rosen concentration camp. SS officials also killed as many as 200 prisoners left behind in Blechhammer as a result of illness or unsuccessful attempts to hide. After a brief delay, the SS transported around 3,000 Blechhammer prisoners from Gross-Rosen to the Buchenwald concentration camp in Germany.
In March 1933, the Enabling Act, an amendment to the Weimar Constitution, passed in the Reichstag by a vote of 444 to 94. This amendment allowed Hitler and his cabinet to pass laws—even laws that violated the constitution—without the consent of the president or the Reichstag. As the bill required a two-thirds majority to pass, the Nazis used intimidation tactics as well as the provisions of the Reichstag Fire Decree to keep several Social Democratic deputies from attending, and the Communists had already been banned. On 10 May, the government seized the assets of the Social Democrats, and they were banned on 22 June. On 21 June, the SA raided the offices of the German National People's Party – their former coalition partners – and they disbanded on 29 June. The remaining major political parties followed suit. On 14 July 1933 Germany became a one-party state with the passage of a law decreeing the NSDAP to be the sole legal party in Germany. The founding of new parties was also made illegal, and all remaining political parties which had not already been dissolved were banned. The Enabling Act would subsequently serve as the legal foundation for the dictatorship the NSDAP established. Further elections in November 1933, 1936, and 1938 were Nazi-controlled, with only members of the NSDAP and a small number of independents elected.
In 1931, Himmler organised an SS intelligence service which became known as the Sicherheitsdienst (SD; Security Service) under his deputy, Heydrich. This organisation was tasked with locating and arresting communists and other political opponents. Himmler established the beginnings of a parallel economy under the auspices of the SS Economy and Administration Head Office. This holding company owned housing corporations, factories, and publishing houses.
Aware that as witnesses to the killings they would eventually be killed themselves, the Sonderkommandos of Birkenau Kommando III staged an uprising on 7 October 1944, following an announcement that some of them would be selected to be "transferred to another camp"—a common Nazi ruse for the murder of prisoners. They attacked the SS guards with stones, axes, and makeshift hand grenades, which they also used to damage Crematorium IV and set it on fire. As the SS set up machine guns to attack the prisoners in Crematorium IV, the Sonderkommandos in Crematorium II also revolted, some of them managing to escape the compound. The rebellion was suppressed by nightfall.
A week after they had gone into hiding, the Franks were joined by Otto’s business associate Hermann van Pels (1898-1944), along with his wife Auguste (1900-45) and their son Peter (1926-45), who were also Jewish. A small group of Otto Frank’s employees, including his Austrian-born secretary, Miep Gies (1909-2010), risked their own lives to smuggle food, supplies and news of the outside world into the secret apartment, whose entrance was situated behind a movable bookcase. In November 1942, the Franks and Van Pels were joined by Fritz Pfeffer (1889-1944), Miep Gies’ Jewish dentist.
On the night of the 27 February 1933 and 28 February 1933, someone set the Reichstag building on fire. This was the building where the German Parliament held their meetings. The Nazis blamed the communists. Opponents of the Nazis said that the Nazis themselves had done it to come to power. On the very same day, an emergency law called Reichstagsbrandverordnung was passed. The government claimed it was to protect the state from people trying to hurt the country. With this law, most of the civil rights of the Weimar Republic did not count any longer. The Nazis used this against the other political parties. Members of the communist and social-democratic parties were put into prison or killed.
The gas chambers in the Auschwitz complex constituted the largest and most efficient extermination method employed by the Nazis. Four chambers were in use at Birkenau, each with the potential to kill 6,000 people daily. They were built to look like shower rooms in order to confuse the victims. New arrivals at Birkenau were told that they were being sent to work, but first needed to shower and be disinfected. They would be led into the shower-like chambers, where they were quickly gassed to death with the highly poisonous Zyklon B gas.
Nazi Germany maintained concentration camps (German: Konzentrationslager, KZ or KL) throughout the territories it controlled before and during the Second World War. The first Nazi camps were erected in Germany in March 1933 immediately after Hitler became Chancellor and his Nazi Party was given control of the police by Reich Interior Minister Wilhelm Frick and Prussian Acting Interior Minister Hermann Göring. Used to hold and torture political opponents and union organizers, the camps initially held around 45,000 prisoners. In 1933–1939, before the onset of war, most prisoners consisted of German Communists, Socialists, Social Democrats, Roma, Jehovah's Witnesses, homosexuals, and persons accused of 'asocial' or socially 'deviant' behavior by the Germans.