Hitler was born April 20, 1989. He had 3 sister and 4 brothers. They lived in a farm Linz, Austria. He grew up in a strict household because his parents were home all the time. When he grew up he joined the military and served in WWI.
Hitler led the Holocaust where more than 6 million European Jews were killed.
Auschwitz is the most well known concentration camp. It had about 1.1 million deaths there. It was the biggest concentration camp.