Answer: the decision by the United States government to prevent additional settlement
Explanation:
What was meant by the "closing" of the Western frontier was that the United States government wanted to prevent additional settlement.
This decision was as a result of the government's plan to promote the westward expansion after the Civil War, but however, they had to close the Western frontier to prevent additional settlers.
George Washington
served from 1789-1797
as the first President of the U.S.A.
Italy<span> had three advantages that made it the </span>birthplace of the Renaissance<span>: thriving cities, a wealthy merchant class, and the classical heritage of Greece and Rome. large city-states in northern </span>Italy<span>.</span>
The answer that would make the most sense is bipolar disorder.
