Sigmund Freud
Sigmund Freud, born in Freiberg, Moravia, on May 6, 1856, and now known as one of the greatest minds of the 20th century, was a physiologist, medical doctor, psychologist, and the father of psychoanalysis. He postulated that many neuroses (mostly phobias, hysteria, chronic pain, and sometimes forms of paranoia) had origins in past traumatic experiences