Answer:
brainliest plzzzz
Explanation:
1890
In 1890, the Census Bureau announced the end of the frontier, meaning there was no longer a discernible frontier line in the west, nor any large tracts of land yet unbroken by settlement. This news had a terrific psychological impact on many Americans. For the first time in history, America was without a frontier.
So they could pay off the debt they were in. hope this helps
The best option regarding Spain's treatment of the native americans would be that "<span>C. they were treated poorly and forced to work for Spanish businesses," since the Spanish exploited both the Natives and their land. </span>