Herman Hollerith Designs a punch card system that was used to calculate the 1880 census. He created a company that later became IBM (23 h 58 min, 31 déc. 1889 ans – 8 h 24 min, 2 janv. 1890 ans)
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23 h 58 min, 31 déc. 1889 ans
8 h 24 min, 2 janv. 1890 ans
~ 2 days