On this day: January 21

POSTED: 2:57 PM Jan 18 2013   UPDATED: 1:00 AM Jan 21 2015

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 - John Edwards
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Alex Wong/Getty Images

2010: Former Democratic presidential candidate John Edwards admits fathering a child during an affair before his second White House bid. After the admission, Edwards' wife, Elizabeth Edwards, would announce a separation from her husband, with an intention to file for divorce. Elizabeth Edwards died from breast cancer on Dec. 7, 2010.

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