Herman Ebbinghaus (Barmen, Germany, January 24, 1850 – Halle, Germany, February 26, 1909) was born to Lutheran merchants. He studied philosophy at the University of Bonn (and for a short time also at the universities of Berlin and Halle). He completed his dissertation on Eduard von Hartmann’s Philosophy of the Unconscious and received his doctorate in 1873 at the age of 23. From 1873 to 1880, Ebbinghaus studied and worked as a tutor at several universities in England and France. Then he lectured at the University of Berlin where he served as private lecturer until 1894. In 1890, he cofounded and edited the Zeitschrift für Psychologie und Physiologie der Sinnesorgane. From 1894 to 1909, he was professor at the University of Breslau but also taught at Halle. Ebbinghaus founded laboratories for psychological research at the Universities of Berlin and Breslau. He was the father of the eminent Neo-Kantian philosopher Julius Ebbinghaus.