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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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15 mayo 1889 año - J. M. Cattell: First American Professor of Psychology
Añadido al timeline:
First Psychologists
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Jessica
15 oct 2017
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fecha:
15 mayo 1889 año
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~ 136 years ago
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