14 December - Alabama was admitted as the 22nd state in the United States

 

Alabama was admitted as the 22nd state in the United States on December 14, 1819. It became part of the Union during the era of westward expansion and was preceded by Mississippi, which was admitted as the 20th state on December 10, 1817. Alabama's admission to the Union followed the organization of its territorial government and marked its transition from a territory to a fully recognized state within the United States.