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Two possible answers-

  • 1776 when the U.S. declared its independence and signed the Declaration of Independence.
  • 1783 with the signing of the Treaty of Paris which officially ended the American Revolution and Great Britain recognized the United States' independence.

The ratification of the Constitution was complete on March 4, 1789, when New Hampshire adopted it, officially the United States didn't become "united" until all states accepted the Constitution.

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11y ago

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