States admitted in the 20th century: Oklahoma, New Mexico, Arizona, Alaska, and Hawaii.
Oklahoma (1907), New Mexico (1912), Arizona (1912), Alaska (1959), and Hawaii (1959) were admitted to the union during the 20th century.
California was admitted into the Union on September 9, 1850 becoming the 31st state to join the Union. California will celebrate its 200th anniversary during 2050.
Arizona was admitted into the union during the 20th century. Arizona was admitted into the Union on February 14, 1912 becoming the 48th state to join the Union. California was admitted into the Union on September 9, 1850 becoming the 31st state to join the Union. Vermont was admitted into the Union on March 4, 1791 becoming the 14th state to join the union.
There is no limit to the number of states that may be admitted to the Union.
Arizona Alaska New Mexico Hawaii Oklahoma
50 states have been admitted to the U.S. union.
No states were admitted in 1800.
Vermont was admitted to the Union on March 4, 1791 becoming the 14th state to join the union. Kentucky was admitted to the Union on June 1, 1792 becoming the 15th state to join the Union. Tennessee was admitted to the Union on June 1, 1796 becoming the 16th state to join the Union.
The first state to be admitted to the Union of States was Delaware. Delaware was the first state to sign the Constitution of the United States.
America is the union. The Union refers to the union of states forming the United States of America.
Alaska was admitted into the Union on January 3, 1959 becoming the 49th state to join the Union. Hawaii was admitted into the Union on August 21, 1959 becoming the 50th state to join the union.
Oregon was admitted to the Union on February 14, 1859 becoming the 33rd state to join the union.