Carl Jung, in full Carl Gustav Jung, (born July 26, 1875, Kesswil, Switzerland—died June 6, 1961, Küsnacht), was a Swiss psychologist and psychiatrist who founded analytic psychology, in some aspects a response to Sigmund Freud’s psychoanalysis. Jung proposed and developed the concepts of the extraverted and the introverted personality, archetypes, and the collective unconscious. His work has been influential in psychiatry and in the study of religion, literature, and related fields.