15-year-old Anne looked very critically at the texts written by 13-year-old Anne. She gave to the texts written during the first six months in hiding an especially thorough going-over. There, the differences between the original diary and Anne's rewritten version are the greatest. Since the original diary letters from 1943 have not survived, we do not know anything about them. It is noteworthy that in The Secret Annex, Anne left out her notes about her love for Peter and her vicious remarks about her mother, such as 'my mother is in most things an example to me, but then an example of precisely how I shouldn’t do things.'

At Auschwitz-Birkenau, new arrivals were told to carefully hang their clothing on numbered hooks in the undressing room and were instructed to remember the numbers for later. They were given a piece of soap and taken into the adjacent gas chamber disguised as a large shower room. In place of carbon monoxide, pellets of the commercial pesticide Zyklon-B (prussic acid) were poured into openings located above the chamber upon the cynical SS command - Na, gib ihnen shon zu fressen (All right, give 'em something to chew on). The gas pellets fell into hollow shafts made of perforated sheet metal and vaporized upon contact with air, giving off lethal cyanide fumes inside the chamber which oozed out at floor level then rose up toward the ceiling. Children died first since they were closer to the floor. Pandemonium usually erupted as the bitter almond-like odor of the gas spread upwards with adults climbing on top of each other forming a tangled heap of dead bodies all the way up to the ceiling.

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. Four hundred thousand souls - babies, small children, young girls, mothers, fathers, and grandparents - are said to have been casually waved to the lefthand side with a flick of the cane clasped in a gloved hand.
After the June 1941 German invasion of the Soviet Union, SS and police units (acting as mobile killing units) began massive killing operations aimed at entire Jewish communities. By autumn 1941, the SS and police introduced mobile gas vans. These paneled trucks had exhaust pipes reconfigured to pump poisonous carbon monoxide gas into sealed spaces, killing those locked within. They were designed to complement ongoing shooting operations.
Bartoszewski was a founder of the Polish resistance who organized an underground organization, comprised mostly of Catholics, to help save Jews. He worked to provide false documents to Jews living outside the Warsaw ghetto. In the fall of 1942, he helped found an organization (Council for Aid to Jews) which successfully saved many Jews from the gas chambers. Bartoszweski was actually imprisoned in the Auschwitz Concentration Camp between 1940 and 1941, and after his release was secured by the Red Cross he reported on the camp.
While concentration camps were meant to work and starve prisoners to death, extermination camps (also known as death camps) were built for the sole purpose of killing large groups of people quickly and efficiently. The Nazis built six extermination camps, all in Poland: Chelmno, Belzec, Sobibor, Treblinka, Auschwitz, and Majdanek. (Auschwitz and Majdanek were both concentration and extermination camps.)
Soviet civilian populations in the occupied areas were heavily persecuted.[438] Villages throughout the Soviet Union were destroyed by German troops.[439] Germans rounded up civilians for forced labor in Germany and caused famine by taking foodstuffs.[440] In Belarus, Germany imposed a regime that deported some 380,000 people for slave labor and killed hundreds of thousands of civilians. Over 600 villages had their entire populations killed, and at least 5,295 Belarusian settlements were destroyed by the Germans. According to Timothy Snyder, of "the nine million people who were in the territory of Soviet Belarus in 1941, some 1.6 million were killed by the Germans in actions away from battlefields, including about 700,000 prisoners of war, 500,000 Jews, and 320,000 people counted as partisans (the vast majority of whom were unarmed civilians)".[441] The United States Holocaust Memorial Museum has estimated that 3.3 million of 5.7 million Soviet POWs died in German custody.[442] The death rates decreased as the POWs were needed to help the German war effort; by 1943, half a million had been deployed as slave labor.[409]
The term righteous gentile is a reference to the term 'Righteous Among the Nations' that is a honour bestowed by Yad Vashem. Gushee's work is a study of these people, the (very) few in number who risked personal harm to selflessly assist Jews from persecution. This book is full of accounts of such persons, some who succeeded and some who failed. These are extremely challenging, particularly when faced with the question 'what would I do in such a situation?' knowing that what I hope I would do and what I do may not be synonymous. In studying such persons Gushee presents a good overview of the types of people who were in the minority and were righteous Gentiles, including conclusions on the extent religion played a role in their actions.
Mengele joined the Nazi Party in 1937 and the Schutzstaffel (SS; protection squadron) in 1938. He received basic training in 1938 with the Gebirgsjäger (light infantry mountain troop) and was called up for service in the Wehrmacht (Nazi armed forces) in June 1940, some months after the outbreak of World War II. He soon volunteered for medical service in the Waffen-SS, the combat arm of the SS, where he served with the rank of SS-Untersturmführer (second lieutenant) in a medical reserve battalion until November 1940. He was next assigned to the SS-Rasse- und Siedlungshauptamt (SS Race and Settlement Main Office) in Poznań, evaluating candidates for Germanization.[18][19]