Jean Piaget1969
Publication of "The Mechanisms of Perception". Publication of "The Childs Conception of Time"
Switzerland · Science / Psychology. Chronological records rendered directly from the World History Database.
Publication of "The Mechanisms of Perception". Publication of "The Childs Conception of Time"
This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.