Eugen Bleuler
Paul Eugen Bleuler (April 30, 1857 – July 15, 1939) was a Swiss psychiatrist most notable for his contributions to the understanding of mental illness and for coining the terms "schizophrenia", "autism", and what Sigmund Freud called "Bleuler's happily chosen term ambivalence".
Read more about Eugen Bleuler: Biography, Relationship With Freud, Schizophrenia, Further Contributions