Which country gave the Panama Canal back to its government, when there was no longer a need to exercise imperialism in the region? A. United States B. Spain C. England​

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

continental currency was denominated in dollars from $​1⁄6 to $80, including many odd denominations in between.