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15 dic 1878 anni - Sistema de censo

Descrizione:

Censo estadounidense. Se desarrolló un sistema de cómputo mediante tarjetas perforadas.
Se aplicó para el censo de 1890.

Aggiunto al nastro di tempo:

Trabajo practico Linea del tiempo

ByTomas Gonzalez Blasi

4 dic 2019

0

0

294

Data:

15 dic 1878 anni

Adesso

~ 146 years ago

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