On this day: January 21

Published On: Jan 18 2013 02:57:15 PM CST   Updated On: Jan 21 2015 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 - Paul Allen
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Andrew Burton/Getty Images

1953: Paul Allen, entrepreneur and co-founder of Microsoft, is born in Seattle, Washington.

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