Only Congress can admit new States to the Union. A new state my not be created without the consent of that states legislature.
New states can be admitted into the United States through a process outlined in the U.S. Constitution. This process involves Congress passing a law to admit the new state, followed by the President signing the law.
West Virginia was admitted to the union of the United States of America on June 20, 1863.
No states were admitted in 1800.
The Missouri Compromise allowed two new states to be admitted. The two states that were admitted are Maine and Missouri.
There were 48 states in the United States in 1922. Arizona and New Mexico were the most recent additions, having been admitted in 1912.
The United States Congress is the governmental body that grants new states admission to the Union. Hawaii is the last state to have been admitted to the Union.
The first 13 states became a country in 1776, but when the Constitution of the United States was being ratified in 1787-1790 the original 13 states were essentially being re-admitted into the new Constitutional United States. This means that the "first" 13 states were not admitted at the same time. The 14th through 23rd states were admitted into the union from 1791-1820 The "second" 10 states admitted into the union are: Vermont (Split from New York), Kentucky (Split from Virginia), Tennessee (Split from North Carolina), Ohio, Louisiana, Indiana, Mississippi, Illinois, Alabama and Maine (Split from Massachusetts).
The 47th state admitted to the United States was New Mexico, which joined in 1912. The 48th state was Arizona, which also joined in 1912.
New Mexico and Arizona became states in the United States on January 6, 1912. As of 2014, they were the last states admitted to the Union.
States admitted in the 20th century: Oklahoma, New Mexico, Arizona, Alaska, and Hawaii.
New Mexico received statehood on January 6, 1912. It was the 47th state to be admitted to the United States.
The last state in the continental United States to be admitted to the Union was Arizona. It was admitted on February 14, 1912. Not long before that, New Mexico was the 47th state to be admitted on January 6, 1912. Of course, Alaska and Hawaii were admitted after Arizona in 1959, but they are not part of the continental states.