On this day: January 21

Published On: Jan 18 2013 02:57:15 PM CST   Updated On: Jan 21 2016 01:00:00 AM CST

Louis XVI is guillotined, the first nuclear-powered submarine launches, the nation catches "Saturday Night Fever," and President Reagan's second inauguration heads indoors, all on this day.

OTD January 21 - USS Nautilus
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U.S. Navy

1954: The first nuclear-powered submarine, the USS Nautilus, is launched in Groton, Connecticut, by first lady Mamie Eisenhower.

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