What happened at the sand creek massacre?

a massacre of Cheyenne and Arapaho people by the U.S. Army in the American Indian Wars that occurred on November 29, 1864.

Cheyenne tribe once put into reservation by U.S. Army, Army opened fire on the Natives, 150 died.

Explanation:

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

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