Granville Stanley Hall (February 1, 1844 – April 24, 1924) was a pioneering American psychologist and educator. His interests focused on childhood development and evolutionary theory. Hall was the first president of the American Psychological Association and the first president of Clark University.
Born in Ashfield, Massachusetts, Hall graduated from Williams College in 1867, then studied at the Union Theological Seminary. Inspired by Wilhelm Wundt's Principles of Physiological Psychology, in 1878 he earned his doctorate in psychology under William James at Harvard University, the first psychology doctorate awarded in America After Hall graduated with his doctorate, there were no academic jobs available in psychology, so he went to Europe to study at the University of Berlin, and spent a brief time in Wundt's Leipzig laboratory in 1879.