What a Date in Psychotherapy Marks
A date in psychotherapy can mark a clinical study, a published manual or the founding of an institution, and each records a different stage in how a form of care takes shape.
Browse the chronologyCompare two dates. In 1895 Josef Breuer and Sigmund Freud published Studien über Hysterie. In 1946 Mamie Phipps Clark and Kenneth B. Clark founded the Northside Center for Child Development in Harlem. The first is a publication of case histories and theoretical arguments, while the second is an institutional event embedding child therapy inside a community facing segregation. Neither date marks "when psychotherapy began", because talking cures, moral treatment and community care developed across many places and traditions.
A book or manual date also differs from the slow development of an approach. When Carl Rogers published Client-Centered Therapy in 1951, or Marsha Linehan published her manual on Dialectical Behavior Therapy in 1993, years of recorded sessions, clinical trials and revisions had already taken place. A publication date records when a formulation became widely teachable and testable, not a single moment of invention.
As the field grew, questions about therapeutic change shifted toward process and evidence. In 1979 Edward Bordin formulated the working alliance around shared goals, agreed tasks and an interpersonal bond across different schools of therapy. Outcome meta-analyses and process studies asked whether change comes primarily from a named technique, the therapeutic relationship, or the fit with a client's context.
Contemporary milestones further broaden who delivers and receives psychological support. In 2016 Dixon Chibanda and colleagues reported a randomised trial of the Friendship Bench in Zimbabwe, where trained lay health workers delivered problem-solving therapy on clinic benches. The question had expanded from competing specialist schools to cultural adaptation, community access and collaborative care.
Reading this chronology well means asking what each date actually records (a publication, a clinical study, an institution or a historical event), what therapeutic question it addressed, and what scope or evidence limits remain open. Check whether an entry dates the start of clinical work or the report where it appeared, since those years often differ.