Punch cards were produced to represent each citizen of the United States in 1900. U.S. Census Bureau It’s hard to imagine the U.S. Census being completed without the help of computers. What’s ...

Commissioned by the United States Census Bureau to make counting people easier, the device would lead to the creation of IBM After the United States Census Bureau dispatched its workers across the ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This machine was used to punch paper ...

1890 - The U.S. Constitution mandates a census, or headcount, of the country's population every ten years. When the Constitution was written, the main reason for the census was to know the number of ...

As a schoolboy growing up in New York City in the 1870s, Herman Hollerith often managed to sneak out of the schoolroom just before spelling lessons. His teacher noticed and one day locked the door; ...

“WOULD it not be of great satisfaction to the king to know, at a designated moment every year, the number of his subjects?” A military engineer by the name of Sébastien le Prestre de Vauban posed this ...