Browning believes that the "Final Solution as it is now understood—the systematic attempt to murder every last Jew within the German grasp"[5] took shape during a five-week period, from 18 September to 25 October 1941. During this time: the sites of the first extermination camps were selected, different methods of killing were tested, Jewish emigration from the Third Reich was forbidden, and 11 transports departed for Łódź as a temporary holding station. During this period, Browning writes, "The vision of the Final Solution had crystallised in the minds of the Nazi leadership, and was being turned into reality."[5] This period was the peak of Nazi victories against the Soviet Army on the Eastern Front, and, according to Browning, the stunning series of German victories led to both an expectation that the war would soon be won, and the planning of the final destruction of the "Jewish-Bolshevik enemy".[114]
In October 1941 the Nazis began turning the concentration camp at Majdanek into a death camp as well. They then began the construction of killing centres at Bełżec, Treblinka, near Warsaw, and at Sobibór. The first mass gassing of Jews began in Chelmno on 8 December 1941, when the Nazis used gas vans to murder people from the Łódź ghetto. The Nazis also ordered the expansion of the Auschwitz camp complex to increase the capacity for murder.
Ghettos were intended to be temporary until the Jews were deported to other locations, which never happened. Instead, the inhabitants were sent to extermination camps. The ghettos were, in effect, immensely crowded prisons serving as instruments of "slow, passive murder."[216] Though the Warsaw Ghetto contained 30% of Warsaw's population, it occupied only 2.5% of the city's area, averaging over 9 people per room.[217] Between 1940 and 1942, starvation and disease, especially typhoid, killed many in the ghettos.[218] Over 43,000 Warsaw ghetto residents, or one in ten of the total population, died in 1941;[219] in Theresienstadt, more than half the residents died in 1942.[216]
^ French Jews were active in the French Resistance.[328] Zionist Jews formed the Armee Juive (Jewish Army), which participated in armed resistance under a Zionist flag, smuggled Jews out of the country,[329] and participated in the liberation of Paris and other cities.[330] As many as 1.5 million Jewish soldiers fought in the Allied armies, including 500,000 in the Red Army, 550,000 in the U.S. Army, 100,000 in the Polish army, and 30,000 in the British army. About 200,000 Jewish soldiers serving in the Red Army died in the war, either in combat or after capture.[331] The Jewish Brigade, a unit of 5,000 Jewish volunteers from the British Mandate of Palestine, fought in the British Army.[332]
The deportees were forced into rail cars, most of which were windowless, unheated cattle cars, and squeezed in so tightly that most were forced to stand. The doors were then sealed shut from the outside. Neither drinking water nor sanitary facilities were available. Each car held more than 120 people, and many froze or suffocated to death or succumbed to disease during the trip to the camps. The dead were not removed from the cars during the journey because the Nazi bureaucracy insisted that each body entering a car be accounted for at the destination.
“One of the things that I always say is you leave room for the next generation of technology to do things that you can’t fathom,” Freund said. “Look, I’m doing things that my teachers never thought of. I don’t have the chutzpah to think that I know all the answers, and maybe in another generation the technology will improve, people will have better ideas, you know?”
Born on March 16, 1911 in Günzburg, Germany to a prosperous family, Josef Mengele was the eldest of 3 children. In 1935, he earned a PhD in physical anthropology from the University of Munich, and 2 years later he became the assistant of Dr. Otmar von Verschuer, a leading scientific figure known for his research with twins, at the Institute for Hereditary Biology and Racial Hygiene in Frankfurt. That same year, Mengele joined the Nazi Party, and in 1938, joined the SS. In 1940, he was drafted into the military, where he volunteered for medical service in the Waffen-SS. However, his time in the military was cut short after being wounded while on campaign and he was sent back to Germany, where he resumed work with von Verschuer at the Kaiser Wilhelm Institute for Anthropology.

Twins in the experiments describe three days of what must have been psychological examination and three days of laboratory experiments. "Three times a week we were marched to Auschwitz to a big brick building, sort of like a big gymnasium. They would keep us there for about six or eight hours at a time - most of the days. ..... We would have to sit naked in the large room where we first entered, and people in white jackets would observe us and write down notes. They also would study every part of our bodies. They would photograph, measure our heads and arms and bodies, and compare the measurements of one twin to another. The process seemed to go on and on." (Echoes from Auschwitz, Kor).
Prisoners transported to these extermination camps were told to undress so they could shower. Rather than a shower, the prisoners were herded into gas chambers and killed. (At Chelmno, the prisoners were herded into gas vans instead of gas chambers.) Auschwitz was the largest concentration and extermination camp built. It is estimated that 1.1 million people were killed at Auschwitz.
Concentration camps were top priority in the conference. ""Nazis would trap Jews in ghettos'' said Himmler. Then they were taken to death camps. Auschwitz mainly. They killed 1 to 3 million people there. '' Under proper guidance in the Final Solution the Jews are to be relocated for appropriate  labor in the east. Able-bodied Jews will be separated according to sex. Then taken in large work columns to work on roads of course many will die of natural causes.'' Himmler said this during the conference.
Although the phrase "Righteous Gentiles" has become a general term for any non-Jew who risked their life to save Jews during the Holocaust, it here appears to apply specifically to: Raoul Wallenberg [Swedish, d. 1947] Hiram Bingham IV [d. 1988, American]; Karl Lutz [d. 1975, Swiss]; C. Sujihara [d. 1986, Japanese]; and Andre Trocme [d. 1971, French].
Hitler intended to blame the Jews for the new world war he was soon to provoke. That war began in September 1939 as German troops stormed into Poland, a country that was home to over three million Jews. After Poland's quick defeat, Polish Jews were rounded up and forced into newly established ghettos at Lodz, Krakow, and Warsaw, to await future plans. Inside these overcrowded walled-in ghettos, tens of thousands died a slow death from hunger and disease amid squalid living conditions. The ghettos soon came under the jurisdiction of Heinrich Himmler, leader of the Nazi SS, Hitler's most trusted and loyal organization, composed of fanatical young men considered racially pure according to Nazi standards.
One extraordinary aspect of the journey to the death camps was that the Nazis often charged Jews deported from Western Europe train fare as third class passengers under the guise that they were being "resettled in the East." The SS also made new arrivals in the death camps sign picture postcards showing the fictional location "Waldsee" which were sent to relatives back home with the printed greeting: "We are doing very well here. We have work and we are well treated. We await your arrival."
Szeptycki (also spelled Sheptytskyi) was a member of the Polish Catholic hierarchy who ordered that the clergy reporting to him act to save Jews. At first, Andrey worked with his brother Abbot Kliment to help a Jewish boy, Kurt Lewin, whose parents had been murdered by the Nazi's by keeping him safe in one of their monasteries in western Ukraine. During the course of the Holocaust, Szeptycki saved a number of Jews by allowing them to find shelter within the monasteries affiliated with the Greek Catholic Church.

Almost all Jews within areas occupied by the Germans were killed. There were 3,020,000 Jews in the Soviet Union in 1939, and the losses were 1–1.1 million.[400] Around one million Jews were killed by the Einsatzgruppen in the occupied Soviet territories.[401][402] Of Poland's 3.3 million Jews, about 90 percent were killed.[369] Many more died in the ghettos of Poland before they could be deported.[403] The death camps accounted for half the number of Jews killed; 80–90 percent of death-camp victims are estimated to have been Jews.[394] At Auschwitz-Birkenau the Jewish death toll was 1.1 million;[286][404] Treblinka 870,000–925,000;[405] Bełżec 434,000–600,000;[406][287] Chełmno 152,000–320,000;[407][288] Sobibór 170,000–250,000;[408][291] and Majdanek 79,000.[289]
Between April and June of 1940, Germany invaded Norway, Denmark, the Netherlands, Belgium, and Luxembourg consolidating power across neutral Western Europe. On June 22, 1940, France signed an armistice with Germany, which divided France between the German-occupied territory in the north and the Vichy regime in the south. Although officially neutral, the French state during this time was generally pro-Nazi and cooperated with Germany’s racial policies.
The government defined a Jewish person as someone with three or four Jewish grandparents, not someone who had religious convictions. This meant that people who had never practiced, or hadn’t practiced Judaism in many years, or even converted to Christianity were subjected to persecution. Although anti-semitism was pervasive in 1930s Germany, these restrictions frequently extended to any person the Nazis considered to be “non-Aryan”.
After Germany’s loss in WWI, the Treaty of Versailles punished Germany by placing tough restrictions on the country. The treaty made Germany take full responsibility for the war, reduced the extent of German territory, severely limited the size and placement of their armed forces, and forced Germany to pay the allied powers reparations. These restrictions not only increased social unrest but, combined with the start of the Great Depression, collapsed the German economy as inflation rose alongside unemployment.
Mengele earned his first doctorate in anthropology from the University of Munich in 1935. He did his post-doctoral work at Frankfurt under Dr. Otmar Freiherr von Verschuer, who was a fully indoctrinated Nazi eugenicist. National Socialism always held that individuals were the product of their heredity, and von Verschuer was one of the Nazi-aligned scientists whose work seemed to legitimize that assertion.
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.
Mengele injected chemicals into the eyes of children in an attempt to change their eye color. Unfortunately a strict veil of secrecy over the experiments enabled Mengele to do his work more effectively.The full extent of his gruesome work will never be known because the records he sent to Dr. Von Verschuer at the Kaiser Wilhelm Institute were shipped out in two truckloads and destroyed by the latter.
But the exhortations of both Isaiah and the Jerusalem Talmud would also seem to apply, collectively and individually, to the thousands of Poles who saved Jews, often exposing themselves to considerably greater danger than those who acted similarly in Nazi-occupied Western Europe. Nor is the message of these passages limited to acts of heroic selflessness during the Shoah. Think, for instance, of Zidan Saif, the Druze policeman who gave his life defending a Jerusalem synagogue against terrorists in 2014—or, in the realm of power politics, of those many Gentiles, from Arthur Balfour to Harry Truman to Daniel P. Moynihan, who at decisive moments in history have spoken up for the Jewish people and the Jewish state.
After the Wannsee Conference in January 1942, the Nazis began the systematic deportation of Jews from all over Europe to six extermination camps established in former Polish territory -- Chelmno , Belzec, Sobibor, Treblinka, Auschwitz-Birkenau, and Majdanek. Extermination camps were killing centers designed to carry out genocide. About three million Jews were gassed in extermination camps.
Yugoslavia and Greece were invaded in April 1941 and surrendered before the end of the month. Germany and Italy divided Greece into occupation zones but did not eliminate it as a country. Yugoslavia, home to around 80,000 Jews, was dismembered; regions in the north were annexed by Germany and regions along the coast made part of Italy. The rest of the country was divided into the Independent State of Croatia, nominally an ally of Germany, and Serbia, which was governed by a combination of military and police administrators.[167] According to historian Jeremy Black, Serbia was declared free of Jews in August 1942.[168] Croatia's ruling party, the Ustashe, killed the country's Jews, and killed or expelled Orthodox Christian Serbs and Muslims.[167] Jews and Serbs alike were "hacked to death and burned in barns", according to Black. One difference between the Germans and Croatians was that the Ustashe allowed its Jewish and Serbian victims to convert to Catholicism so they could escape death.[168]
^ 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.
The Germans invaded the Soviet Union in 1941. Leaders of the SS and police and leaders of the German armed forces had concluded pre-invasion agreements. In accordance with these agreements, SS and police units—including Einsatzgruppen of the German Security Police and SD and battalions of the German Order Police—followed German troops into newly occupied Soviet territory. Acting as mobile killing units, they conducted shooting operations aimed at annihilating 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.
During his time at Auschwitz, Josef Mengele was not the only physician there. It is popularly believed that he was the highest-ranking physician at the camp. This is not the case. That “distinction” belonged to SS captain Dr. Eduard Wirths. Wirths’ position as garrison physician made him responsible in all medical matters for the entire camp complex.

Josef Mengele, byname Todesengel (German: “Angel of Death”), (born March 16, 1911, Günzburg, Germany—died February 7, 1979, Enseada da Bertioga, near São Paulo, Brazil), Nazi doctor at Auschwitz extermination camp (1943–45) who selected prisoners for execution in the gas chambers and conducted medical experiments on inmates in pseudoscientific racial studies.
Further trials at Nuremberg took place between 1946 and 1949, which tried another 185 defendants.[460] West Germany initially tried few ex-Nazis, but after the 1958 Ulm Einsatzkommando trial, the government set up a governmental agency to investigate crimes.[461] Other trials of Nazis and collaborators took place in Western and Eastern Europe. In 1960, Mossad agents captured Adolf Eichmann in Argentina and brought him to Israel to stand trial on 15 indictments, including war crimes, crimes against humanity, and crimes against the Jewish people. He was convicted in December 1961 and executed in June 1962. Eichmann's trial and death revived interest in war criminals and the Holocaust in general.[462]
Medical experiments conducted on camp inmates by the SS were another distinctive feature.[51] At least 7,000 prisoners were subjected to experiments; most died as a result, during the experiments or later.[52] Twenty-three senior physicians and other medical personnel were charged at Nuremberg, after the war, with crimes against humanity. They included the head of the German Red Cross, tenured professors, clinic directors, and biomedical researchers.[53] Experiments took place at Auschwitz, Buchenwald, Dachau, Natzweiler-Struthof, Neuengamme, Ravensbrück, Sachsenhausen, and elsewhere. Some dealt with sterilization of men and women, the treatment of war wounds, ways to counteract chemical weapons, research into new vaccines and drugs, and the survival of harsh conditions.[52]
It is not clear which of the four gas chambers at Birkenau that Litwinska was referring to. The Krema IV and Krema V gas chambers were on the ground floor and had "small windows high up near the roof" where the gas pellets were thrown in by the SS men. But neither of these two gas chambers had a "gas chamber chute" for dumping the victims into the gas chamber from "tipper-type lorries," which Americans would call dump trucks.
Seven months later, November 1943, the U.S. Congress held hearings concerning the U.S. State Department's total inaction regarding the plight of European Jews. President Franklin Roosevelt responded to the mounting political pressure by creating the War Refugee Board (WRB) in January 1944 to aid neutral countries in the rescue of Jews. The WRB helped save about 200,000 Jews from death camps through the heroic efforts of persons such as Swedish diplomat Raoul Wallenberg working tirelessly in occupied countries.
Romania implemented anti-Jewish measures in May and June 1940 as part of its efforts towards an alliance with Germany. Jews were forced from government service, pogroms were carried out, and by March 1941 all Jews had lost their jobs and had their property confiscated.[169] After Romania joined the invasion of the Soviet Union in June 1941, at least 13,266 Jews were killed in the Iași pogrom,[170] and Romanian troops carried out massacres in Romanian-controlled territory, including the Odessa massacre of 20,000 Jews in Odessa in late 1941. Romania also set up concentration camps under its control in Transnistria, where 154,000–170,000 Jews were deported from 1941 to 1943.[169]
Hitler's first step was to take the Jews civil rights away. then he branded and labeled them as if they were cattle. Then he sent them to death and labor camps. If they were they were sent to ghettos. in 1941 most of the Jewish population in Germany would be sent to camps. Nazis racial policies took over everything to try and find a solution for the Jewish question. the Nazis tried to separate them and force migration but when this did not work they found a final solution to the Jewish question. This was the murdering of the Jews in Europe. No-one knows when this decision was made but when the ghettos were built Heydrich said '' this is one step closer to the final aim''.    
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]