Stanley Milgram (August 15, 1933 – December 20, 1984) was an American social psychologist. He is most famous for his controversial study about obedience to authority figures. In these experiments, Milgram showed that about two out of three people would follow orders of an authority figure to the point of risking the life of, or perhaps even killing, an innocent person. He got the idea from the Holocaust. He wrote a book about his experiments called "Obedience to Authority".