Johann Maass
German psychologist
Johann Gebhard Ehrenreich Maass was a German psychologist.
Maass was born in 1766 in Krottendorf near Halberstadt. In 1791 he became an extraordinary professor of philosophy, and in 1798 a full professor. Wikipedia
Born: February 26, 1766, Krottorf, Gröningen, Germany
Died: December 23, 1823 (age 57 years), Halle (Saale), Germany