By now, experimental mobile gas vans were being used by the Einsatzgruppen to kill Jews in Russia. Special trucks had been converted by the SS into portable gas chambers. Jews were locked up in the air-tight rear container while exhaust fumes from the truck's engine were fed in to suffocate them. However, this method was found to be somewhat impractical since the average capacity was less than 50 persons. For the time being, the quickest killing method continued to be mass shootings. And as Hitler's troops advanced deep into the Soviet Union, the pace of Einsatz killings accelerated. Over 33,000 Jews in the Ukraine were shot in the Babi Yar ravine near Kiev during two days in September 1941.

Once Germany took over Poland in 1939, it created forced-labor camps. Thousands of prisoners died from working conditions, exhaustion, and starvation. After the outbreak of World War II, the number of concentration camps increased exponentially. The number of prisoners of war camps also rose, but after the first years of the war most were converted into concentration camps. Nazis forcibly relocated Jews from ghettos to concentration camps.
The first such extermination camps were introduced during Operation Reinhardt, which targeted the elimination of the Jewish people within the General Government of Occupied Poland and Ukraine. After the first killing center open at Chelmno, the use of these extermination tactics spread quickly. At the height of deportations, the Birkenau killing center murdered 6,000 Jews a day.
In the Lviv pogroms in occupied Poland in July 1941, some 6,000 Polish Jews were murdered in the streets, on top of 3,000 arrests and mass shootings by Einsatzgruppe C.[231][m] During the Jedwabne pogrom, on 10 July 1941, a group of 40 Polish men killed several hundred Jews; around 300 were burned alive in a barn. The attack is thought to have been organized by the German Security Police (Sicherheitsdienst).[233] A long debate about who was responsible for the Jedwabne murders was triggered in 2001 by the publication of Jan T. Gross's book Neighbors: The Destruction of the Jewish Community in Jedwabne, Poland.[234] The response to the book was described as "the most prolonged and far-reaching of any discussion of the Jewish issue in Poland since the Second World War".[235]
The Final Solution was a plan of Adolf Hitler's to kill all the Jews in Europe. Hitler's Anti- Semitic ideas were so strong that he released hatred by mass murder. Before Hitler decided to become dictator the Final Solution was already in his head. In a couple of books written by Gerald Fleming Hitler says '' Once I  am really in power my first task will be the genocide of the Jews .'' He achieved his goal by killing six million Jews. Hitler began  the final solution in every European Nation he was  control of. The Jews were sent to concentration/death camps.
Von Verschuer’s work revolved around hereditary influences on congenital defects such as cleft palate. Mengele was an enthusiastic assistant to von Verschuer, and he left the lab in 1938 with both a glowing recommendation and a second doctorate in medicine. For his dissertation topic, Mengele wrote about racial influences on the formation of the lower jaw.
After the end of World War II, surviving archival documents provided a clear record of the Final Solution policies and actions of Nazi Germany. They included the Wannsee Conference Protocol, which documented the co-operation of various German state agencies in the SS-led Holocaust, as well as some 3,000 tons of original German records captured by Allied armies,[23][29] including the Einsatzgruppen reports, which documented the progress of the mobile killing units assigned, among other tasks, to kill Jewish civilians during the attack on the Soviet Union in 1941. The evidential proof which documented the mechanism of the Holocaust was submitted at Nuremberg.[29]
The passages which are included in the new version are not anything that the average 8-12 year old girl does not already know about her own body and the "birds and the bees", and are so few and short that they comprise a tiny percentage of the work itself. The romance between herself and Peter is very chaste and nothing untoward happens in the story. (Spoiler: they hold hands and a kiss a few times. that's it.) The passages that some see as inappropriate are not at all titillating, a medical textbook is more erotic. Coming from a mom's point of view, I would definitely allow my daughter to read the unedited book.
Before and after the March 1933 Reichstag elections, the Nazis intensified their campaign of violence against opponents.[77] They set up concentration camps for extrajudicial imprisonment.[78] One of the first, at Dachau, opened on 9 March 1933.[79] Initially the camp contained mostly Communists and Social Democrats.[80] Other early prisons were consolidated by mid-1934 into purpose-built camps outside the cities, run exclusively by the SS.[81] The initial purpose of the camps was to serve as a deterrent by terrorizing Germans who did not conform.[82]
Though much about his wartime activities was known, the German government had not requested his extradition, and even supplied him with documents clearing him of a criminal record. The German ambassador in Buenos Aires is quoted in the Mossad file on Mengele as saying he received orders to treat Mengele as an ordinary citizen since there was no arrest warrant for him. When, finally, a warrant was issued in 1959, Mengele caught word. He went into hiding, first in Paraguay and then in Brazil.
The Germans' overwhelming repression and the presence of many collaborators in the various local populations severely limited the ability of the Jews to resist. Jewish resistance did occur, however, in several forms. Staying alive, clean, and observing Jewish religious traditions constituted resistance under the dehumanizing conditions imposed by the Nazis. Other forms of resistance involved escape attempts from the ghettos and camps. Many who succeeded in escaping the ghettos lived in the forests and mountains in family camps and in fighting partisan units. Once free, though, the Jews had to contend with local residents and partisan groups who were often openly hostile. Jews also staged armed revolts in the ghettos of Vilna, Bialystok, Bedzin-Sosnowiec, krakow, and Warsaw.
The nature and timing of the decisions that led to the Final Solution is an intensely researched and debated aspect of the Holocaust. The program evolved during the first 25 months of war leading to the attempt at "murdering every last Jew in the German grasp".[5] Most historians agree, wrote Christopher Browning, that the Final Solution cannot be attributed to a single decision made at one particular point in time.[5] "It is generally accepted the decision-making process was prolonged and incremental."[6] In 1940, following the Fall of France, Adolf Eichmann devised the Madagascar Plan to move Europe's Jewish population to the French colony, but the plan was abandoned for logistical reasons, mainly a naval blockade.[7] There were also preliminary plans to deport Jews to Palestine and Siberia.[8] In 1941, wrote Raul Hilberg, in the first phase of the mass murder of Jews, the mobile killing units began to pursue their victims across occupied eastern territories; in the second phase, stretching across all of German-occupied Europe, the Jewish victims were sent on death trains to centralized extermination camps built for the purpose of systematic implementation of the Final Solution.[9]
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.
The Polish government-in-exile in London learned about the extermination camps from the Polish leadership in Warsaw, who from 1940 "received a continual flow of information about Auschwitz", according to historian Michael Fleming.[333] This was in large measure thanks to Captain Witold Pilecki of the Polish Home Army, who allowed himself to be arrested in Warsaw and spent 945 days in Auschwitz from September 1940 until April 1943, organizing the resistance movement inside the camp.[334]
The fire signaled the demise of German democracy. On the next day, the government, under the pretense of controlling the Communists, abolished individual rights and protections: freedom of the press, assembly, and expression were nullified, as well as the right to privacy. When the elections were held on March 5, the Nazis received nearly 44 percent of the vote, and with 8 percent offered by the Conservatives, won a majority in the government.

^ Jump up to: a b "Białystok – History". Virtual Shtetl Museum of the History of Polish Jews. p. 6, paragraph #3. According to records, about 5,000 Jews died at that time.[7.2] See: Browning (1998), p. 12 – Weis and his officers subsequently submitted a false report of the events to [General] Pfugbeil ... 2,000 to 2,200 Jews had been killed.[8] – via Internet Archive.

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. 

The Nazi invasion of the Soviet Union codenamed Operation Barbarossa, which commenced on 22 June 1941, set in motion a "war of destruction" which quickly opened the door to systematic mass murder of European Jews.[30] For Hitler, Bolshevism was merely "the most recent and most nefarious manifestation of the eternal Jewish threat".[31] On 3 March 1941, Wehrmacht Joint Operations Staff Chief Alfred Jodl repeated Hitler's declaration that the "Jewish-Bolshevik intelligentsia would have to be eliminated" and that the forthcoming war would be a confrontation between two completely opposing cultures.[32] In May 1941, Gestapo leader Heinrich Müller wrote a preamble to the new law limiting the jurisdiction of military courts in prosecuting troops for criminal actions because: "This time, the troops will encounter an especially dangerous element from the civilian population, and therefore, have the right and obligation to secure themselves."[33]

Mengele was an attractive man. A perennial little smile showed the gap between his front teeth. Immaculately dressed in jodhpurs, he wore a cap bearing the SS insignia and carried the obligatory riding crop, constantly slapping it against his gleaming black boots. Whenever he spoke to me, he was very polite, giving the impression that he was interested in me. It was hard to believe that his little smile and courteous behavior were just a facade behind which he devised the most horrific murderous schemes.
The biblical term shoah (Hebrew: שׁוֹאָה), meaning "destruction", became the standard Hebrew term for the murder of the European Jews, first used in a pamphlet in 1940, Sho'at Yehudei Polin ("Sho'ah of Polish Jews"), published by the United Aid Committee for the Jews in Poland.[11] On 3 October 1941 the cover of the magazine The American Hebrew used the phrase "before the Holocaust", apparently to refer to the situation in France,[12] and in May 1943 The New York Times, discussing the Bermuda Conference, referred to the "hundreds of thousands of European Jews still surviving the Nazi Holocaust".[13] In 1968 the Library of Congress created a new category, "Holocaust, Jewish (1939–1945)".[14] The term was popularized in the United States by the NBC mini-series Holocaust (1978), about a fictional family of German Jews,[15] and in November 1978 the President's Commission on the Holocaust was established.[16] As non-Jewish groups began to include themselves as Holocaust victims too, many Jews chose to use the terms Shoah or Churban instead.[12][g] The Nazis used the phrase "Final Solution to the Jewish Question" (German: die Endlösung der Judenfrage).[18]
After the Nuremberg war crimes trials finished, the United States spearheaded the effort to end genocide and become a champion for the prevention of crimes against humanity. The U.S. pushed for greater international effort, helping to draft the 1948 Genocide Convention. President Harry Truman addressed Congress urging the Convention’s passage. He stressed the role the United States had to play in “outlawing the world-shocking crime of genocide.”

Mengele is known as the “Angel of Death,” or sometimes as the “White Angel,” for his coldly cruel demeanor on the ramp. He is associated more closely with this “selection duty” than any other medical officer at Auschwitz, although by most accounts he performed this task no more often than any of his colleagues. The association is partially explained by his postwar notoriety. The pervasive image of Mengele at the ramp in so many survivors' accounts has also to do with the fact that Mengele often appeared “off-duty” in the selection area whenever trainloads of new prisoners arrived at Auschwitz, searching for twins.

In nearly every country overrun by the Nazis, the Jews were forced to wear badges marking them as Jews, they were rounded up into ghettos or concentration camps and then gradually transported to the killing centers. The death camps were essentially factories for murdering Jews. The Germans shipped thousands of Jews to them each day. Within a few hours of their arrival, the Jews had been stripped of their possessions and valuables, gassed to death, and their bodies burned in specially designed crematoriums. Approximately 3.5 million Jews were murdered in these death camps.
The fire signaled the demise of German democracy. On the next day, the government, under the pretense of controlling the Communists, abolished individual rights and protections: freedom of the press, assembly, and expression were nullified, as well as the right to privacy. When the elections were held on March 5, the Nazis received nearly 44 percent of the vote, and with 8 percent offered by the Conservatives, won a majority in the government.

The capture and trial of Eichmann — and his execution — were enough to teach the world about the Holocaust and to convey the message that Jewish blood cannot be spilled with impunity. From that point on, it would have been better if the Mossad had let the past go. Nazis no longer posed a threat. And there is no lack of present-day enemies who did and apparently always will.
In June 1941, Mengele was posted to Ukraine, where he was awarded the Iron Cross 2nd Class. In January 1942, he joined the 5th SS Panzer Division Wiking as a battalion medical officer. After rescuing two German soldiers from a burning tank, he was decorated with the Iron Cross 1st Class, the Wound Badge in Black, and the Medal for the Care of the German People. He was declared unfit for further active service in mid-1942, when he was seriously wounded in action near Rostov-on-Don. Following his recovery, he was transferred to the headquarters of the SS Race and Settlement Main Office in Berlin, at which point he resumed his association with von Verschuer, who was now director of the Kaiser Wilhelm Institute of Anthropology, Human Heredity, and Eugenics. Mengele was promoted to the rank of SS-Hauptsturmführer (captain) in April 1943.[20][21][22]