On March of 1933, the first of many concentration camps opened. Hitler, who became the president of Germany, systematically rounded all Jewish people and sent them to concentration camps. After being sent to concetration camps, the Jewish people were given minimal food and were put into labour. Everyday, the Germans would use Zyklon B, a type of poison gas, and killing thousands of Jewish people. Total death toll against the Jewish population were 6,000,000 out of the total 11,000,000.