Alexander Hamilton was appointed the first Secretary of the Treasury.
President Franklin Delano Roosevelt dedicated Boulder Dam (now Hoover Dam) in Nevada.
The Beatles recorded their first single, Love Me Do.
Former Soviet leader Nikita Khrushchev died at age 77.
In Scotland, voters approved the establishment of a parliament to run their domestic affairs, after 290 years of union with England.
Two hijacked commercial jets were crashed by terrorists into the north and south towers of the World Trade Center in New York City, causing the collapse of both towers. A short while later, another plane was crashed into the Pentagon, and fourth into a field near Shanksville, Pa.
Armed gunmen stormed the American consulate in Benghazi and killed U.S. ambassador to Libya Christopher Stevens and three other embassy officials.