1864 – The Sand Creek Massacre occurred in Colorado when a militia led by Colonel John Chivington, killed at least 400 peaceful Cheyenne and Arapaho Indians who had surrendered and had been given permission to camp.
1864 – The Sand Creek Massacre occurred in Colorado when a militia led by Colonel John Chivington, killed at least 400 peaceful Cheyenne and Arapaho Indians who had surrendered and had been given permission to camp.