- 1900 – Erich Fromm, German psychologist and sociologist (d. 1980).
- 1933 – Philip Zimbardo, American psychologist and academic.
- 2008 – Vaino Vahing, Estonian psychiatrist, author, and playwright (b. 1940).
Erich Seligmann Fromm (23 March 1900 to 18 March 1980) was a German social psychologist, psychoanalyst, sociologist, humanistic philosopher, and democratic socialist.
He was a German Jew who fled the Nazi regime and settled in the US. He was one of the founders of The William Alanson White Institute of Psychiatry, Psychoanalysis and Psychology in New York City and was associated with the Frankfurt School of critical theory.
Philip George Zimbardo (23 March 1933) is an American psychologist and a professor emeritus at Stanford University.
He became known for his 1971 Stanford prison experiment, which was later severely criticized for both ethical and scientific reasons. He has authored various introductory psychology textbooks for college students, and other notable works, including The Lucifer Effect, The Time Paradox, and The Time Cure. He is also the founder and president of the Heroic Imagination Project.
Vaino Vahing (15 February 1940 to 23 March 2008, in Tartu), was an Estonian writer, prosaist, psychiatrist and playwright. Starting from 1973, he was a member of the Estonian Writers Union.