Historedia
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Admission of Mississippi

When
10 December 1817
Where
Congressional Resolution Site
Part of
Mississippi admitted as the 20th U.S. state

Mississippi was admitted as the 20th U.S. state on December 10, 1817, following the dissolution of the Mississippi Territory.

The western half of the Mississippi Territory was admitted to the Union as the new State of Mississippi on December 10, 1817. This event finalized the division planned by federal statutes in March 1817. The admission marked the end of the territory's 19-year existence and established Mississippi as the 20th state.

Sources

  1. Mississippi Wikipedia, revision of 2026-10-03
  2. Mississippi Territory Wikipedia, revision of 2026-09-29

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.