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Monthly Features

Featured Photo

Hawaii exhibit of the 1964 World's FairMusicians at the Hawaii exhibit of the 1964 World's Fair. Photo courtesy of the Hawaii State Archives.

1964-1965 World's Fair

1964 World's Fair site, Queens, New YorkUnisphere, 1964 World's Fair, Queens, New York. Photo courtesy of the Library of Congress.

1926 Sesquicentennial Exposition

U.S. Census Bureau display at the Sesquicentennial Exposition, Philadelphia, PA, 1926 U.S. Census Bureau display at the Sesquicentennial Exposition, Philadelphia, PA, 1926. Photo courtesy of the National Archives. The population clock in the center of the display updated the estimated population of the United States every 20 seconds. At the time the photograph was taken in the second half of 1926, the U.S. population was estimated to be 117,589,970.


Source: U.S. Census Bureau | Census History Staff | Last Revised: February 25, 2013