Question

As many as __________ indians gathered at the ft. laramie council of 1851.

Answer 1

The answer to this question is 10,000 indians.
They gathered in that place because of the Treaty of Fort Laramie.
The treaty of Fort Laramie divide the lands that exist on top of united states into several parts, and determine which part of region that couldn't be claimed in any way by the Government