Missouri Digital Heritage :: Educational Resources :: Timeline of Missouri History : 1820-1829

Timeline of Missouri History: 1820-1829


1820 The Missouri statehood controversy became a national issue as the issue of slavery was debated. The "Missouri Compromise" allowed Missouri to enter the Union as a slave state and Maine as a free state, thus keeping the balance of slave and free states equal in Congress. Although Missouri was allowed to enter as a slave state, the remaining portion of the Louisiana Purchase area north of the 36° 30¢ line was to be forever free of slavery
1820 Missouri’s Enabling Act was passed and approved by President James Monroe (Mar. 6) Governor Alexander McNair
Governor Alexander McNair
1820 Missouri’s first Constitution was adopted (Jul. 19)
1820 Missouri’s first state elections were held and Alexander McNair was elected Missouri’s first governor (Aug. 28)
1820 Missouri's first General Assembly began its first session at the Missouri Hotel in St. Louis (Sept. 18)
1821 President James Monroe admitted Missouri as the 24th state; the state capitol was located in St. Charles until a permanent location was designated (Aug. 10)
1821 The Santa Fe Trail was opened by William Becknell’s successful trading expeditions to Santa Fe (Sept. 1)
1821 Governor Alexander McNair signed the bill designating the site for the City of Jefferson (Dec. 31)
1822 A bill to create the Missouri State Seal was adopted (Jan. 11)
1825 William Beaumont began research observing the human digestive system (Aug. 1)
1826 Jefferson City was designated Missouri’s permanent seat of government; all state records, equipment, and the Great Seal were moved to Jefferson City on October 1st
1829 Missouri State Library established by law (Jan. 22)