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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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31 dic 1928 año - Es nombrado como director de la Oficina Internacional de Educación hasta 1967
Añadido al timeline:
Jean Piaget
By
Emma Muñoz
14 oct 2018
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517
fecha:
31 dic 1928 año
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~ 96 years ago
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