When Hitler became Chancellor of Germany in 1933, eugenicists welcomed his appointment. Many in the eugenics community believed that Hitler would be the one to put their theories into real practice to "cleanse" the population of Germany. They were correct. Moving first against those deemed to be "unhealthy" and "unfit" to be members of the People's Community, the Nazi regime began forced sterilizations. By 1939, Hitler was ready to move to eliminate the mentally ill and physically disabled in what came to be called the "Euthanasia" Project. Learning about the "Euthanasia" Project is critical to understanding the evolution of Nazi killing methods.