Exhibits At the Museum

This Day in History

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Today: March 4, 2015
Hollerith Electrical Printing and Tabulating Machine

December 15, 1896

Hollerith Agrees to Supply Machines for Russian Census

Hollerith’s Census Machine was first employed by the US Census Bureau in 1890 as the result of a crisis in counting a rapidly-increasing US population. Methods based on Hollerith's machine served for almost 60 years until the Bureau adopted electron.