Adolf Hitler The most notorious man in history, Adolf Hitler, is best known for having perpetrated crimes against humanity over the six-year course of World War II. His brutal extermination policies are responsible for the deaths of close to 30 million people he considered inferior, and added to that, the military casualties suffered by all parties, yields a grand total of approximately 60 million people dead by the end of the war. That number equates to 3% of the world