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28 feb 1921 anni - Inicia a trabajar en la Universidad de Ginebra en el instituto de Jean-Jacques Rousseau

Descrizione:

Edouard Claparède y Pierre Bovet le ofrecen el puesto de jefe de trabajos prácticos

Aggiunto al nastro di tempo:

Biografía de Jean Piaget

ByYenym Tinjaca

2 ott 2017

0

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772

Data:

28 feb 1921 anni

Adesso

~ 104 years ago

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