| 1912 | Born in Berlin, of German-Jewish descent |
| 1931-
1932 | Studies economics and psychology at the universities in Heidelberg and Berlin |
| 1933 | Flees to Zürich |
| 1933 on | Major in psychology, minor in pre-clinical medicine and psychiatry; further studies in education, theology, literature, philosophy at the university of Zürich.
Trained as psychoanalyst by the international society for psychoanalysis |
| 1941 | Emigration to the USA |
| 1941-
1942 | Training in Early Childhood Progressive Education at the Bankstreet School (later college) in New York City |
| 1941-
1944 | Psychotherapy studies at the William Alanson Institute in New York, particularly in the work of Harry Stack Sullivan. Studies at Columbia university, New York. Master's degree (M.A.) and "Diplompsychologin". |
| 1946-
1972 | Private psychotherapy practice in New York City, continuing estrangement from classical psychoanalysis and interest in experiential therapy |
| 1948-
1951 | Helps to build up the NPAP (National Psychological Association for Psychoanalysis) |
| 1949-
1973 | Training in group therapy with such pioneers as Asya Kadis, Sandy Flowermann, Alexander Wolf and others |
| 1955 | Ruth C. Cohn initiates a workshop on the subject of "Counter transference"; its methodology will become the basis for Theme-centered Interaction (TCI) |
| 1957-
1973 | Instructor at the Center for Psychotherapy (later Center for Mental Health) in the department of group therapy |
| From 1962 on | Active member in the American Academy of Psychotherapy, the meeting place of representatives of new and classical psychotherapy methods (George Bach, Fritz Perls, Carl Rogers, Virginia Satir, John Warkentin, Carl Whitaker and many others) |
| Beginning of the 60s | Ruth C. Cohn works for the first time employing TCI in a business enterprise |
| 1965-
1966 | Additional training with Fritz Perls in Gestalt therapy |
| 1966 | Founds the Workshop Institute for Living-Learning, the institute for training, research and practice of TCI (Theme-Centered Interaction, TCI) |
| From 1968 | Ruth C. Cohn returns to Europe to attend international congresses on Group Therapy in Vienna, Lindauer Psychotherapiewochen, DAGG conference in Bonn, Psychotherapy Institute in London |
| 1971 | Psychologist of the Year Award from the New York Society for Clinical Psychology |
| 1973 | Guest professor for TCI at Clark University, Mass. |
| 1974 | Returns to Europe, where she lives in Hasliberg-Goldern, Switzerland
Private practice, teacher for TCI and counselor for colleagues in the Ecole d'humanité in Hasliberg Goldern (http://www.ecole.ch) |
| 1979 | Recipient of an honorary doctorate (Dr. phil.h.c.) from the psychology department at Hamburg University |
| 1992 | Recipient of the "Große Verdienstkreuz" from Federal Republic of Germany |
| 1994 | Recipient of an honorary doctorate (Dr. phil. h.c.) from the Institute for Psychology in the philosophy-history department of Bern University |
| 2010 | Dies in Düsseldorf January 30th |
