Massachusetts was admitted into the Union on February 6, 1788 becoming the 6th state to join the Union.
23
April 28, 1788
Pennsylvania was a"Free State"
Illinois was admitted to the Union on December 3, 1818 becoming the 21st state to join the union.
Alaska was admitted into the Union on January 3, 1959 becoming the 49th state to join the Union.
Utah was admited to the union in 1896 making the centenary year 1996
Massachuetts
New states can be admited to the union only with th e approval of who?
Mississippi was the 20th state admitted to the Union. The state was admitted on December 10, 1817.
Tennessee was the last state to withdraw from the Union, after a statewide referendum on June 8, 1861. On July 24, 1866 Tennessee became the first Confederate state to be readmitted into the Union.
yes
John Winthrop