1890s Sigmund Freud proposes an analytic approach to psychotherapy.
1940s and 1950s Fritz Perls, with Laura Perls and Paul Goodman, develops Gestalt therapy—a cognitive approach to psychotherapy.
1955 Albert Ellis introduces Rational Emotive Behavior Therapy (REBT), breaking with the tradition of analysis.
1975 Martin Seligman defines “learned helplessness” in Helplessness: On Depression, Development, and Death.
1980s A blend of Beck’s ideas and the behavior therapies of Joseph Wolpe give rise to new cognitive behavioral therapies.
After psychology had become established as a distinct field of study, around ...