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1 gen 1890 anni - Invention of Herman Hollerith's machine

Descrizione:

Herman Hollerith invented his machine which was similar to the Step Reckoner, and helped in the census of 1890.
(Found in the videos from Section 3.1)

Aggiunto al nastro di tempo:

Module 3.2 for CSC

ByCarson
28 set 2018

Data:

1 gen 1890 anni
Adesso
~ 134 years ago
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