In 1920 Hermann Rorschach signed a publishing contract with Bircher, of Bern, Switzerland, for 1,200 copies of Psychodiagnostik, the book explaining his inkblot interpretation technique. Bircher was the eighth publisher to consider the material and agreed to publish it only if the number of cards was reduced from Rorschach's 15 to the set of 10 now considered the standard set. Bircher published the book on June 6, 1921. Rorschach died 10 months afterward.

Type of event: Other Notable Event

Country: Switzerland

Region: Europe and the former USSR