1969The Childs Conception of TimeJean Piaget
Publication of "The Mechanisms of Perception". Publication of "The Childs Conception of Time"
Historical records for Switzerland in 1969, rendered directly from the World History Database and ordered by month, day and event.
Publication of "The Mechanisms of Perception". Publication of "The Childs Conception of Time"
Publication of "The Mechanisms of Perception". Publication of "The Childs Conception of Time"
This page is generated from stored World History Database records matching the exact country and year shown above. Exact duplicate display records are collapsed. Records without a month are listed after the monthly sections. Source provenance varies by record; formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.