On this day: October 9

Published On: Oct 08 2012 10:58:57 PM EDT   Updated On: Oct 09 2014 02:00:00 AM EDT

The Washington Monument opens to the public, John Lennon is born, Che Guevara is executed, and President Barack Obama wins the Nobel Peace Prize, all on this day.

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National Archives and Records Administration

1936: Generators at Boulder Dam (later renamed to Hoover Dam) begin to generate electricity from the Colorado River and transmit it 266 miles to Los Angeles.