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Picture of the day
A woman using a
Hollerith pantograph
, a machine developed by
Herman Hollerith
for the punching of cards, providing
data
which could then be processed. Such tools were used in the
1890 United States Census
, the first time the
country's census
was tabulated by machine.
Picture: Unknown; restoration:
Mmxx
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Wikipedia Picture of the day June 2013