Question

What was the first state to join the United States ​

Answer 1

The first state to join the United States was Delaware, which ratified the Constitution on December 7, 1787.

Answer 2

Below the diamond are the words "December 7, 1787," indicating the day on which DELAWARE was the first state to ratify the federal Constitution. Because of this action, Delaware became the first state in the Union, and is, therefore, accorded the first position in such national events as presidential inaugurations.