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Censimento Americano, Schede Perforate e Macchina di Analisi (25 mar 1880 ano – 25 mar 1887 ano)

Descrição:

Hollerith inventò una macchina di analisi a schede perforate per un censimento in America (iniziato nel 1880)

Adicionado na linha do tempo:

Timeline New Media

ByFrancesca Previtali

20 nov 2017

0

0

475

Data:

25 mar 1880 ano

25 mar 1887 ano

~ 7 years

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