// todo need optimize like in event.jsp. Add indexing or not indexing this page. Jean Piaget (9 Aug 1896 Jahr – 16 Sept 1980 Jahr) (Band der Zeit)
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Jean Piaget (9 Aug 1896 Jahr – 16 Sept 1980 Jahr)

Beschreibung:

Studies children's cognitive development.

Zugefügt zum Band der Zeit:

History of Psychology

ByDiane Bush
5 Feb 2018

Datum:

9 Aug 1896 Jahr
16 Sept 1980 Jahr
~ 84 years
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