Answer: 32-50=-18
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The sioux indian attacks on stagecoach lines.
<span>The causes of the Sand Creek massacre
were rooted in the long conflict for control of the Great Plains of
eastern Colorado. The Fort Laramie Treaty of 1851 guaranteed ownership
of the area north of the Arkansas River to the Nebraska border to the
Cheyenne and Arapahoe -that part was sighted off history.com- </span>
They decided to settle in Mexico because their god told them to move south, when they got there, all the good land was taken by the other tribes and theirs was filled with snakes.
George Washington was appointed as the supreme commander of the Continental Army.