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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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30 mar 1920 año - Participa en el perfeccionamiento de la Prueba de Inteligencia. Coeficiente Intelectual (C.I.), investigado por Stern.
Añadido al timeline:
Jean Piaget
By
Emma Muñoz
14 oct 2018
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0
517
fecha:
30 mar 1920 año
Ahora mismo
~ 105 years ago
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