Key term for OCR GCSE History B, used in The West 1839–1860.
An atrocity in November 1864 where US troops under Colonel Chivington slaughtered up to 230 peaceful Cheyenne and Arapaho people.
Sand Creek Massacre appears in OCR GCSE History B revision content for The Making of America (1789–1900), especially The West 1839–1860 and Gold Rush.
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