Stanley Milgram was a social psychologist born in 1933 in New York City. He received his PhD from Harvard University in 1960. Milgram is best known for his theory of obedience, which he tested in a famous experiment where participants were instructed to administer electric shocks to another person. Contrary to experts' predictions, 65% of participants continued shocking the other person to the highest levels, demonstrating people's willingness to obey authority even when it causes harm. The experiment had significant implications for understanding why people commit unethical acts when following orders.