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1 Jan 1890 Jahr - Invention of Herman Hollerith's machine

Beschreibung:

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)

Zugefügt zum Band der Zeit:

28 Sep 2018

Datum:

1 Jan 1890 Jahr
Jetzt
~ 134 years ago