Missouri Statehood
Missouri entered the Union at a moment when westward expansion and sectional politics were becoming impossible to separate from one another.
How This State Entered The Union
Statehood is where constitutional structure meets regional history: the point where a place entered the Union as an equal state.
Admission To The Union
Missouri became the twenty-fourth state on August 10, 1821, in the aftermath of the Missouri Compromise.
Path To Statehood
Its route ran through territorial organization and population growth, but admission was shaped above all by the national argument over slavery and sectional balance.
Why It Matters
Missouri matters because its admission made clear that statehood was not just a local matter. It could reshape the whole national political balance.
Read Next
Go back to the state page, then return to the larger constitutional story that made equal state membership possible.
Larger Context
Federalism and the founding era give the admission story its larger constitutional frame.