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

Mississippi became the twentieth state on December 10, 1817, after developing from territorial status along the lower Mississippi system.

Path To Statehood

Its route followed federal territorial administration, rapid southern settlement, and the broader expansion of plantation agriculture into the Gulf South.

Why It Matters

Mississippi matters because it shows how river geography, cotton, slavery, and Gulf access reshaped the Union in the decades before the Civil War.