Granville Stanley Hall was born. A profoundly influential figure in the development of modern psychology, Hall earned the first Ph.D. degree in psychology to be awarded in the United States under the supervision of William James at Harvard University.

Among his many pioneering contributions, Hall established The first formal psychology research laboratory in the U.S during his tenure as Professor of Psychology and Pedagogics at Johns Hopkins University in 1883; was one of the 31 founding members of the American Psychological Association in 1892, serving as inaugural President and he co-founded the Journal of Applied Psychology in 1917.

Renowned as an exceptional teacher and supervisor, Hall's most notable students included Lewis Terman, James McKeen Cattell, John Dewey and Joseph Jastrow.

Information via: On This Day in Psychology: A Showcase of Great Pioneers and Defining Moments