14h 52min, nov 21, 1855 y - Bleeding Kansas
Description:
 Bleeding Kansas, Bloody Kansas or the Border War was a series of violent political confrontations in the United States between 1854 and 1861 involving anti-slavery "Free-Staters" and pro-slavery "Border Ruffian", or "southern" elements in Kansas 
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Date:
14h 52min, nov 21, 1855 y
Now
 ~ 170 years ago