21 dez 1866 ano - December 21, 1866: Fetterman Massacre
Descrição:
 The warrior crazy horse had killed over 80 men. All 81 men under the command of Captain William j Fetterman were killed by the Indians. 
Outcome: Indian victory. 81 killed.
Importance: The worst military disaster ever suffered by U.S. Army on the Great plains. 
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