The Sand Creek Massacre (also known as the Chivington massacre or the Battle of Sand Creek or the Massacre of Cheyenne Indians) is an incident in the Indian Wars of the United States that occurs on November 29, 1864, when Colorado Territory militia attack and destroy a village of Cheyenne and Arapaho encamped on the eastern plains.
An estimated 150 to 200 Indians are murdered, nearly all elderly men, women and children.
