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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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21 dic 1889 año - Se tabula el censo estadounidense empleando las máquinas de tarjetas perforadas de Herman Hollerith
Añadido al timeline:
innovadores
By
Katerin gaitan
3 oct 2018
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373
fecha:
21 dic 1889 año
Ahora mismo
~ 135 years ago
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