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Construction begins on the Pentagon.
Related Wikipedia articles
The Pentagon
Headquarters of the U.S. Department of Defense in Arlington, Virginia
The Pentagon is the headquarters building of the United States Department of Defense, in Arlington County, Virginia, across the Potomac River from Washington, D.C. The building was constructed on an accelerated schedule during World War II. As a symbol of the U.S. military, the…Source: Wikipedia (CC BY-SA)
September 11
Day of the year
September 11 is the 254th day of the year in the Gregorian calendar; 111 days remain until the end of the year.Source: Wikipedia (CC BY-SA)