Stanley Milgram (August 15, 1933 – December 20, 1984) was an American social psychologist, best known for his controversial experiment on obedience conducted in the 1960s during his professorship at Yale. Milgram was influenced by the events of the Holocaust, specifically the trial of Adolf Eichmann, in developing this experiment.His small-world experiment while at Harvard would lead researchers to analyze the degree of connectedness, most notably the six degrees of separation concept.