| Territory of Missouri | |||||||||||||||||
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| Organized incorporated territory of United States | |||||||||||||||||
| 1812–1821 | |||||||||||||||||
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 Map of the Territory of Missouri in 1812 | |||||||||||||||||
| Capital | St. Louis | ||||||||||||||||
| • Type | Organized incorporated territory | ||||||||||||||||
| History | |||||||||||||||||
• Renaming of Louisiana Territory | 4 June 1812 | ||||||||||||||||
• Territory of Arkansas created | March 2, 1819 | ||||||||||||||||
• Missouri statehood | 10 August 1821 | ||||||||||||||||
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The Territory of Missouri was an organized incorporated territory of the United States that existed from June 4, 1812,[1] until August 10, 1821. In 1819, the Territory of Arkansas was created from a portion of its southern area. In 1821, a southeastern portion of the territory was admitted to the Union as the State of Missouri, and the rest became unorganized territory for several years.