How did the united states became who they are today

One reason the U.S. became who they are today is due to the Continental Convention. They were the ones who officially changed "United Colonies" [Original 13 colonies] , to "United States" once everything was together and they were out of British rule. This took place on September 9, 1776. Also, when the United States were official, the people elected General George Washington to be the very first President.

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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.