The Territory of Missouri was a territory of the United States from June 4, 1812 to August 10, 1821. In 1819, the Arkansas Territory was created from a portion of its southern area. In 1821, a southeastern part of the territory became part of the Union as the State of Missouri, and the rest became unorganized territory for several years.
|Territory of Missouri|
|Organized incorporated territory of the United States|
|Flag of the United States|
|Government||Organized incorporated territory|
|•||Renaming of Louisiana Territory||June 4, 1812|
|•||Territory of Arkansas created||March 2, 1819|
|•||Missouri statehood||August 10, 1821|
- "How the City of Jefferson became the State Capital". Archived from the original on 7 February 2005. Retrieved 9 July 2011.