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Wilhelm Maximilian Wundt (/ w ʊ n t /; German:; 16 August 1832 – 31 August 1920) was a German physiologist, philosopher, and professor, one of the fathers of modern psychology. Wundt, who distinguished psychology as a science from philosophy and biology, was the first person ever to call himself a psychologist.

He is widely regarded as the "father of experimental psychology ". In 1879, at the University of Leipzig, Wundt founded the first formal laboratory for psychological research. This marked psychology as an independent field of study.

He also established the first academic journal for psychological research, Philosophische Studien (from 1883 to 1903), followed by Psychologische Studien (from 1905 to 1917), to publish the institute's research.

A survey published in American Psychologist in 1991 ranked Wundt's reputation as first for "all-time eminence", based on ratings provided by 29 American historians of psychology. William James and Sigmund Freud were ranked a distant second and third.