Alabama: Polity Style: 1817-1819

15 Aug 1817	the eastern part of the Mississippi Territory constitutes a separate territory under the name of Alabama, in accordance with an act passed by the Congress of the United States (Senate on 21 Feb 1817, House of Representatives on 3 Mar 1817), signed into law on 3 Mar 1817, effective on 15 Aug 1817 (Statutes at Large, 3:371-373) [1][2]
15 Aug 1817 - 2 Aug 1819	Alabama Territory
2 Mar 1819	the inhabitants of the Alabama Territory are authorized to form a constitution and state government and to assume a name for the future State, to be admitted to the United States when formed, in accordance with an act passed by the Congress of the United States (Senate on 12 Jan 1819, House of Representatives on 19 Feb 1819 with amendments; Senate concurs in the amendments on 23 Feb 1819), signed into law on 2 Mar 1819 (Statutes at Large, 3:489-492) [3]
2 Aug 1819	the Constitution of the State of Alabama is adopted at a session of the Convention held at Huntsville on 30 Jul 1819 and signed on 2 Aug 1819 (Alabama Convention 1819, pp. 37-39) [4]

Full title: An Act to Establish a Separate Territorial Government for the Eastern Part of the Mississippi Territory.
The date of commencement was fixed by Section 5 of the Act and made contingent upon the formation of a constitution and state government by a convention of the State of Mississippi on 15 Aug 1817.
Full title: An act to enable the people of the Alabama Territory to form a Constitution and State government, and for the admission of such state into the Union on an equal footing with the original States.
Following the adoption of the Constitution of the State of Alabama, all civil and military officers of the territorial government were authorized by a provision of the Constitution to continue in office until superseded.