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4 h 15 min, 11 févr. 1971 ans - He led an active life till his death and was the Emeritus Professor at the University of Geneva from 1971 till 1980

Ajouté au bande de temps:

Jean Piaget

ByCourtney Ewing
7 févr. 2018

Date:

4 h 15 min, 11 févr. 1971 ans
Maintenaint
~ Il y a 53 ans
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