This Day in History
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 U.S. Census Bureau in 1890 as the result of a crisis in counting a rapidly-increasing U.S. population. Methods based on Hollerith's machine served for almost 60 years until the Bureau adopted electron.