1897 - Born on the 11th of November in Montezuma, Indiana.
1915 - He was enabled to join his brother Floyd at Harvard College through the scholarships.
1919 - Finished his A.B. degree with majors in philosophyand economics.
1921 - He received his M.A. degree.
1922 - He received his Ph.D..
1924 - Returned to Harvard as an instructor in social ethics.
1925 - Married Ada Lufkin Gould.
1937 - Associate Professor of Psychology.
- Published his first major book entitled Personality: A Psychological Interpretation.
- He was the editor of the Journal of Abnormal and Social Psychology.
1939 - Elected as president of the American Psychological Association.
1942 - Became a full professor of psychology.
1958 - Awarded an honorary L.H.D. degree by Boston University.
1961 - Published a major revision of his work entitled Pattern and Growth in Personality.
1963 - Awarded the Gold Medal of the American Psychological Foundation.
1964 - He received the Distinguished Scientific Contribution Award.
1967 - He died 9th of October due to lung cancer in Cambridge, Massachusetts.
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