Do you mean who seceded first - from the Union? That was South Carolina.
Later one state seceded from the Confederacy, and that was West Virginia.
Minnesota was a Union State during the Civil War.
Illinois was a Union state during the Civil War.
Texas was a southern state during the Civil War.
Delaware was a Union state
Under the provisions of the Missouri Compromise, Maine was the state that entered the Union with Missouri.
West Virginia is the state entered the Union during the Civil War. The exact date was on June 2, 1863.
Yes, California entered the Union prior to the Civil War.
Minnesota was a Union State during the Civil War.
A Union state.
Illinois was a Union state during the Civil War.
Texas was a southern state during the Civil War.
West Virginia
During the Civil War New York was a Union state.
None, Maine was the only state to join the union in 1820.
West Virginia and Nevada both entered the US during the Civil War.
it was part of union
Mississippi was a Confederate State.