File:United States 1820-1821-07.pngDescriptionUnited States 1820-1821-07.png Map of the states and territories of the United States as it was from 1820 to July 1821. On March 16 1820, the northern
File:United States 1821-07-1821-08.pngDescriptionUnited States 1821-07-1821-08.png Map of the states and territories of the United States as it was from July 1821 to August 1821. On July 10 1821, the
File:United States 1849-1850.pngCommons Attribution 2.5 truetrue You may select the license of your choice. English Map of the states and territories of the United States from 1849-1850