Thousands upon thousands were used and killed in medical experiments...
Tens of thousands, if not more, died doind slave labor...
I will offer some preliminary numbers and sources. I am confident that you will offer nothing but opinionated tripe in response, but who knows?
Auschwitz II-Birkenau, more than 20,000 people could be gassed and cremated each day
Auschwitz concentration camp - Wikipedia, the free encyclopedia
How many Jews were murdered in the Holocaust? How do we know? Do we have their names?
There is no precise figure for the number of Jews killed in the Holocaust. The figure commonly used is the six million quoted by Adolf Eichmann, a senior SS official. Most research confirms that the number of victims was between five and six million. Early calculations range from 5.1 million (Professor Raul Hilberg) to 5.95 million (Jacob Leschinsky). More recent research, by Professor Yisrael Gutman and Dr. Robert Rozett in the Encyclopedia of the Holocaust, estimates the Jewish losses at 5.59–5.86 million, and a study headed by Dr. Wolfgang Benz presents a range from 5.29 million to six million.
The main sources for these statistics are comparisons of prewar censuses with postwar censuses and population estimates. Nazi documentation containing partial data on various deportations and murders is also used. We estimate that Yad Vashem currently has somewhat more than four million names of victims that are accessible. This figure is based primarily on some two million Pages of Testimony, which often contain information about more than one Jew who perished in the Holocaust. As of early June 1999, more than 1.6 million Pages of Testimony have been computerized. In addition, we have thousands of documents containing names from the Holocaust era, many of which are those of victims
What were the Einsatzgruppen and what was their role in the murder of the Jews?
Einsatzgruppen means "task forces." The SS set up such units before they entered Austria, Czechoslovakia, Poland, and the Soviet Union. The task of the Einsatzgruppen in Poland was to terrorize the local population and murder anyone whom the SS deemed undesirable. The most infamous Einsatzgruppen of all were formed before the invasion of the Soviet Union in June 1941. Their primary task was to destroy what they regarded as the ideological infrastructure of the Soviet Union: political commissars, members of the Communist party, and above all, Jews.
Einsatzgruppen advanced into the Soviet Union along with the German army. Wherever they stopped, they collected and shot in cold blood as many Jews as they could find (first Jewish males, and soon thereafter Jewish women and children, as well). They wrote detailed daily reports on their activities, copies of which still exist. According to their own incomplete reports, they killed at least 900,000 Jews and were assisted by other units in the murder of hundreds of thousands more.
The Holocaust - Yad Vashem