On this day: September 19

Published On: Sep 18 2012 11:48:40 PM CDT   Updated On: Sep 19 2016 01:00:00 AM CDT

George Washington says goodbye, America takes nuclear testing underground, Simon & Garfunkel reunite in Central Park, and emoticons are born, all on this day.

OTD September 19 - Rainier shot
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National Nuclear Security Administration

1957: The United States conducts its first underground nuclear test, in the Nevada desert, at Area 12 of the Nevada Test Site. The Atomic Energy Commission's first fully contained underground nuclear detonation, named the "Rainier shot" because it took place inside Rainier Mesa, detonated in a horizontal tunnel about 1,600 feet into the mesa and 900 feet beneath the top of the mesa.

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