The Holocaust was the systematic persecution and murder of approximately six million Jews by the Nazi regime. The Nazis, who came to power in Germany in January 1933, believed that Germans were "racially superior" and that the Jews, deemed "inferior," were "unworthy of life." During the era of the Holocaust, the Nazis also targeted other groups because of their perceived "racial inferiority": Roma (Gypsies), the handicapped, and some of the Slavic peoples (Poles, Russians, and others).
In 1933, the Jewish population of Europe stood at over nine million. By 1945, close to two out of every three European Jews had been killed as part of the "Final Solution", the Nazi policy to murder the Jews of Europe.
We chose to signify the start of The Holocaust At the point where Hitler became the Chancellor of Germany instead of the Attack on Poland.