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 - Black Monday
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2008: Worldwide stock markets slump in a day that will be labeled "Black Monday." The London Stock Exchange's FTSE 100 index saw its biggest ever one-day points fall, European stocks closed with their worst results since Sept. 11, 2001, and Asian stocks dropped as much as 14 percent.

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