Like the network of concentration camps that followed, becoming the killing grounds of the Holocaust, Dachau was under the control of Heinrich Himmler, head of the elite Nazi guard, the Schutzstaffel (SS), and later chief of the German police. By July 1933, German concentration camps (Konzentrationslager in German, or KZ) held some 27,000 people in “protective custody.” Huge Nazi rallies and symbolic acts such as the public burning of books by Jews, Communists, liberals and foreigners helped drive home the desired message of party strength.
It is estimated that by 1942 Einsatzgruppen had killed more than 1 million Soviet troops. These victims were either shot or gassed. Jews were not the only ones killed. People who opposed Hitler were also murdered. 20th century techniques of mass production were applied in the Final Solution. Engineers of the Final Solution used these ways to cheaply and efficiently murder millions of Jews there were many ways the Nazis murdered people. Some ways were crematoriums, electrocution, injections, flame throwers, hand grenades, and gas chambers. Units of the S.S. that were specially trained followed German troops called the first wave. These squads made up the Einsatzgruppen. Nazis genocide was targeted towards Jews mass murder was targeted towards other Non-Aryans.      
To those whose knowledge of the Holocaust consists, essentially, of the fact that Hitler killed the Jews, it often comes as a surprise to learn that, in the first seven and a half years of Nazi rule in Germany, he did no such killing: Jews were not deliberately murdered by the Nazi regime until the invasion of the Soviet Union in June 1941. In Karl Schleunes’ famous phrase, there was a “twisted road to Auschwitz,” with a gradual but by no means direct path to continental genocide. For the first few years of Nazi rule in Germany”Hitler came to power in January 1933 as chancellor and consolidated his rule after the death of President von Hindenburg a year later”Nazi policy aimed “merely” at the removal of Jews from positions of authority, especially in the state sector, with such removal constantly reinforced by the totalitarian regime’s propaganda and its police terrorism.
What happened next—an avalanche of furies and recriminations lasting years—has lately become the subject of a pair of arresting discussions of the Frank-Levin affair. And if “affair” suggests an event on the scale of the Dreyfus case, that is how Levin saw it: as an unjust stripping away of his rightful position, with implications far beyond his personal predicament. “An Obsession with Anne Frank,” by Lawrence Graver, published by the University of California Press in 1995, is the first study to fashion a coherent narrative out of the welter of claims, counterclaims, letters, cables, petitions, polemics, and rumbling confusions which accompany any examination of the diary’s journey to the stage. “The Stolen Legacy of Anne Frank,” by Ralph Melnick, out just now from Yale, is denser in detail and in sources than its predecessor, and more insistent in tone. Both are accomplished works of scholarship that converge on the facts and diverge in their conclusions. Graver is reticent with his sympathies; Melnick is Levin’s undisguised advocate. Graver finds no villains; Melnick finds Lillian Hellman.
In response to a typhus epidemic in the women's camp, Mengele cleared one block of six hundred Jewish women and sent them to their deaths in the gas chambers. The building was then cleaned and disinfected, and the occupants of a neighboring block were bathed, de-loused, and given new clothing before being moved into the clean block. This process was repeated until all of the barracks were disinfected. Similar procedures were used for later epidemics of scarlet fever and other diseases, with infected prisoners being killed in the gas chambers. For these actions, Mengele was awarded the War Merit Cross (Second Class with swords) and was promoted in 1944 to First Physician of the Birkenau subcamp.[37]

Twins were subjected to weekly examinations and measurements of their physical attributes by Mengele or one of his assistants.[49] The experiments he performed on twins included unnecessary amputation of limbs, intentionally infecting one twin with typhus or some other disease, and transfusing the blood of one twin into the other. Many of the victims died while undergoing these procedures,[50] and those who survived the experiments were sometimes killed and their bodies dissected once Mengele had no further use for them.[51] Nyiszli recalled one occasion on which Mengele personally killed fourteen twins in one night by injecting their hearts with chloroform.[31] If one twin died from disease, he would kill the other twin to allow comparative post-mortem reports to be produced for research purposes.[52]
Meanwhile, sightings of Josef Mengele were being reported all over the world. Wiesenthal claimed to have information that placed Mengele on the Greek island of Kythnos in 1960,[103] in Cairo in 1961,[104] in Spain in 1971,[105] and in Paraguay in 1978, eighteen years after he had left the country.[106] He insisted as late as 1985 that Mengele was still alive—six years after he had died—having previously offered a reward of US$100,000 in 1982 for the fugitive's capture.[107] Worldwide interest in the case was heightened by a mock trial held in Jerusalem in February 1985, featuring the testimonies of over one hundred victims of Mengele's experiments. Shortly afterwards, the West German, Israeli, and U.S. governments launched a coordinated effort to determine Mengele's whereabouts. The West German and Israeli governments offered rewards for his capture, as did The Washington Times and the Simon Wiesenthal Center.[108]

General Patch's 12th Armored Division, forging their way towards the Austrian border, uncovered horrors at a German prison camp at Schwabmunchen, southwest of Munich. Over 4,000 slave laborers, all Jews of various nationalities, were housed in the prison. The internees were burned alive by guards who set fire to the crude huts in which the prisoners slept, shooting any who tried to escape. Sprawled here in the prison enclosure are the burnt bodies of some of the Jewish slave laborers uncovered by the US 7th Army at Schwabmunchen, May 1, 1945. #

On April 16, 1945 Soviets surrounded Berlin, Germany’s capital. When the Soviets began advancing towards the Reich Chancellery, Hitler committed suicide on April 30, 1945. Then on May 7th, Germany surrendered to the Western Allies in Reims, France and a few days later to the Soviets in Berlin. All told more than 60 million people, or about 3% of the world’s population at the time, were killed during the course of the Second World War.
After the arrest of the eight people in hiding, helpers Miep Gies and Bep Voskuijl found Anne's writings in the Secret Annex. Miep held on to Anne's diaries and papers and kept them in a drawer of her desk. She hoped that she would one day be able to return them to Anne. When she learned that Anne had died in the Bergen-Belsen concentration camp, she gave all the notebooks and papers to Anne's father, Otto Frank.
Although Yad Vashem (Israel’s Memorial to the Six Million) has honored over 1,200 Righteous Among the Nations since 1953, it is impossible to generalize about the motives, deeds, and actual numbers of these rescuers. Some rescuers acted within the planned context of guerrilla units and resistance movements, others used the buildings and funds of the Roman Catholic church to aid Jews.
As Nazi tyranny spread across Europe, the Germans and their collaborators persecuted and murdered millions of other people. Between two and three million Soviet prisoners of war were murdered or died of starvation, disease, neglect, or brutal treatment. The Germans targeted the non-Jewish Polish intelligentsia for killing, and deported millions of Polish and Soviet civilians for forced labor in Germany or in occupied Poland, where these individuals worked and often died under deplorable conditions.
SS Officer Hosler, under arrest, stands in front of a truck which is loaded with corpses at Belsen concentration camp  © The Final Solution moved into its last stages as Allied forces began to close in on Germany in 1944. The Project Reinhardt camps were razed. A prisoner work-gang called the Blobel Commando began digging up and burning the bodies of those killed by the Einsatzgruppen. Prisoners remaining in Auschwitz and other concentration camps were transported or force-marched to camps within Germany. Hardly fit for such an effort, thousands of prisoners on these death marches succumbed to starvation, exhaustion and cold, or were shot for not keeping up the pace.
It was Yad Vashem—the institution whose name derives from the same passage in Isaiah—that first popularized the term “righteous among the nations” to refer to those Gentiles who rescued Jews during the Holocaust, often risking their own lives in the process. While Isaiah apparently had in mind Gentiles who related to God in a righteous way, and not necessarily through their relations specifically with Jews, the singling-out of Harbonah focuses our attention on those who exert themselves to protect Jews. In commemorating such people, Yad Vashem has given them, too, “a place and a name” in the original sense of that phrase.
By the end of December 1941, before the Wannsee Conference, over 439,800 Jewish people had been murdered, and the Final Solution policy in the east became common knowledge within the SS.[44] Entire regions were reported "free of Jews" by the Einsatzgruppen. Addressing his district governors in the General Government on 16 December 1941, Governor-General Hans Frank said: "But what will happen to the Jews? Do you believe they will be lodged in settlements in Ostland? In Berlin, we were told: why all this trouble; we cannot use them in the Ostland or the Reichskommissariat either; liquidate them yourselves!"[45] Two days later, Himmler recorded the outcome of his discussion with Hitler. The result was: "als Partisanen auszurotten" ("exterminate them as partisans").[46] Israeli historian Yehuda Bauer wrote that the remark is probably as close as historians will ever get to a definitive order from Hitler for the genocide carried out during the Holocaust.[46] Within two years, the total number of shooting victims in the east had risen to between 618,000 and 800,000 Jews.[44][47]
In Germany, the Nazis had been murdering mentally and physically disabled people as part of its euthanasia programme since 1939. In the beginning, doctors killed them by lethal injection. This was not considered fast enough, so they developed a new process of gassing that was faster and more effective in killing large numbers of people. Over 70,000 people were killed as part of the euthanasia programme.
The memory of this slightly built man, scarcely a hair out of place, his dark green tunic neatly pressed, his face well scrubbed, his Death's Head SS cap tilted rakishly to one side, remains vivid for those who survived his scrutiny when they arrived at the Auschwitz railhead. Polished boots slightly apart, his thumb resting on his pistol belt, he surveyed his prey with those dead gimlet eyes. Death to the left, life to the right.
Anne’s last diary entry was written on August 1, 1944. Three days later the secret annex was discovered by the Gestapo, which had received a tip from Dutch informers. All of the inhabitants were taken into custody. In September the Frank family arrived at Auschwitz, though Anne and Margot were transferred to Bergen-Belsen the following month. In 1945 Anne as well as her mother and sister died.

12 million people were killed by the nazi party, But there was no trace of written order and many questions still remain unanswered. Half a million Gypsies were murdered by the Nazis. Nazis thought Jews to be as low as Jews. They were worked to death or gassed. Nazis murdered 5-6 million Jews two thirds of European Jewry one third of their population. 55 million perished in all 20 million Soviet citizens 5 million Germans and three million non-Jewish poles. 
To be sure, the names of these latter figures would be remembered regardless of what good they have done the Jews. Part of the message of singling out Harbonah, then, lies precisely in the fact that unlike them, he is a minor character. Today, not everyone who writes a small check to Christians United for Israel, or shares an article on Facebook criticizing the anti-Semitism of Ilhan Omar or Jeremy Corbyn, can be known to posterity. But in the midst of the Purim celebrations of Jewish redemption, they, too, deserve to be remembered for the good.

Despite the Vatican failure to act, many priests, nuns, and laymen hid Jews in monasteries, convents, schools, and hospitals and protected them with false baptismal certificates. However, as Saul Friedlander’s memoirs show, many Catholic priests proselytized and converted their “guests.” Moreover, after the war, many Jewish children were never returned to Jewish families, even after lengthy court battles.

An SS report described the scene: "The Jews stayed in the burning buildings until because of the fear of being burned alive they jumped down from the upper stories…With their bones broken, they still tried to crawl across the street into buildings which had not yet been set on fire…Despite the danger of being burned alive the Jews and bandits often preferred to return into the flames rather than risk being caught by us."

The Nazis regarded the Slavs as subhuman, or Untermenschen.[426] In a secret memorandum dated 25 May 1940, Himmler stated that it was in German interests to foster divisions between the ethnic groups in the East. He wanted to restrict non-Germans in the conquered territories to schools that would only teach them how to write their own name, count up to 500, and obey Germans.[427][y] In November 1939 German planners called for "the complete destruction" of all Poles[430] and resettlement of the land by German colonists.[431] The Polish political leadership was the target of a campaign of murder (Intelligenzaktion and AB-Aktion).[432] Between 1.8 and 1.9 million non-Jewish Polish citizens perished at German hands during the course of the war; about four-fifths were ethnic Poles and the rest Ukrainians and Belarusians.[410] At least 200,000 died in concentration camps, around 146,000 in Auschwitz. Others died in massacres or in uprisings such as the Warsaw Uprising, where 120,000–200,000 were killed.[433] During the occupation, the Germans adopted a policy of restricting food and medical services, as well as degrading sanitation and public hygiene.[434] The death rate rose from 13 per 1000 before the war to 18 per 1000 during the war.[435] Around 6 million of World War II victims were Polish citizens; half the death toll were Jews.[436] Over the course of the war Poland lost 20 percent of its pre-war population.[436] Over 90 percent of the death toll came through non-military losses, through various deliberate actions by Germany and the Soviet Union.[433] Polish children were also kidnapped by Germans to be "Germanized", with perhaps as many as 200,000 children stolen from their families.[437]
In most ghettos, Nazis ordered the Jews to establish a Judenrat (Jewish council) to administer Nazi demands and to regulate the internal life of the ghetto. The Nazis routinely ordered deportations from the ghettos. In some of the large ghettos, 1,000 people per day were sent by rail to concentration and extermination camps. To get them to cooperate, the Nazis told the Jews they were being transported elsewhere for labor.
This is not about people acting out a crime of passion. This is planned and rationalized violence — a cultural brainwashing. The rationalization is always that the victims are not truly human, not worthy of the same protections of the law. It’s interesting that the Nazis are often linked to Christianity, especially the Catholic Church. But it is precisely the teachings of the Church that stand in the way of such dehumanization. This is something that Mengele himself knew, as he was raised in a Catholic family. In fact, in his post-WWII journal, Mengele specifically wrote, “We had to liberate Germanic history from Roman and Catholic influences.”
Mengele's research subjects were better fed and housed than the other prisoners, and temporarily spared from execution in the gas chambers.[42] He established a kindergarten for children who were the subjects of his experiments, as well as the preschool children from the Romani camp. The facility provided better food and living conditions than other areas of the camp, and included a children's playground.[43] When visiting his young subjects, he introduced himself as "Uncle Mengele" and offered them sweets,[44] while at the same time being personally responsible for the deaths of an unknown number of victims whom he killed via lethal injection, shootings, beatings, and his deadly experiments.[45] In his 1986 book, Lifton describes Mengele as sadistic, lacking empathy, and extremely antisemitic, believing the Jews should be eliminated entirely as an inferior and dangerous race.[46] Rolf Mengele later claimed that his father had shown no remorse for his wartime activities.[47]