On This Day

What Happened on December 21, 1866

Historical Events

  • Fetterman Massacre: Lakota, Cheyenne, and Arapaho Indians kill all 81 US Army soldiers in the worst military disaster ever suffered by the U.S. Army on the Great Plains
1866 Highlights

About December 21, 1866

Day of the Week: Friday
How Long Ago? 155 years, 7 months and 26 days
Leap Year: No

Star Sign: Sagittarius