How did Adolf Hitler change history? ?
You cannot change history. What Hitler changed was the future, and it still is being changed. What is changing? Well, for one the millions of people he was responsible for killing no longer could contribute to society or produce children who could contribute to society. We have no way of knowing what the the world would be been had these people not died. We can’t know if someone who died in World War II would have otherwise produced a child who then produced a child who would discover a cure for cancer. If you destroy millions of people you affect the future of the world forever. There are no pros to his reign.