Herman Hollerith Designs a punch card system that was used to calculate the 1880 census. He created a company that later became IBM (23 St. 58 Min, 31 Dez 1889 Jahr – 8 St. 24 Min, 2 Jan 1890 Jahr)
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23 St. 58 Min, 31 Dez 1889 Jahr
8 St. 24 Min, 2 Jan 1890 Jahr
~ 2 days
