Mississippi: Polity Style: 1798-2023 7 Apr 1798 Mississippi Territory is organised as a territory of the United States in accordance with an act passed by the Congress of the United States (passed by the Senate 5 Mar 1798, passed by the House of Representatives with amendments 27 Mar 1798, amendments concurred in by the Senate 29 Mar 1798, signed into law 7 Apr 1798) (Statutes at Large, 1:549-550) [1] 7 Apr 1798 - 10 Dec 1817 Mississippi Territory 10 Dec 1817 admitted to the United States under the name of the State of Mississippi in accordance with an act passed by the Congress of the United States (passed by the Senate 31 Jan 1817, passed by the House of Representatives with amendments 26 Feb 1817, amendments concurred in by the Senate 27 Feb 1817, signed into law 1 Mar 1817, and taking effect in accordance with a resolution of the Congress(passed by the Senate 3 Dec 1817, House of Representatives 8 Dec 1817, approved by the President of the United States 10 Dec 1817) (Statutes at Large, 3:348-349) [2] 10 Dec 1817 Constitution of the State of Mississippi, passed by the Constitutional Convention of the Mississippi Territory (15 Aug 1817), becomes operative upon approval by the Congress of the United States in accordance with a resolution of the Congress (passed by the Senate 3 Dec 1817, House of Representatives 8 Dec 1817, approved by the President of the United States 10 Dec 1817) (Statutes at Large, 3:472-473) 10 Dec 1817 - State of Mississippi 9 Jan 1861 secedes from the United States in accordance with an ordinance passed by the Convention of the People of the State of Mississippi 9 Jan 1861 (Mississippi Convention 1861, 8-13, 45-46) [3] 8 Feb 1861 forms a part of the Confederate States of America when the Constitution for the Provisional Government of the Confederate States of America is approved by the Congress and becomes immediately operative [Journal of the Confederate Congress, 1:39; Statutes at Large of the Provisional Government of the Confederate States of America, 1-8] 22 Aug 1865 the ordinance of secession of 1861 is declared to be henceforward null and of no binding force in accordance with an ordinance passed by the Convention (Mississippi Convention 1865, 225) 23 Feb 1870 process of the re-admission to the United States is completed when An Act to Admit the State of Mississippi to Representation in the Congress of the United States took effect (passed by the House of Representatives 3 Feb 1870, passed by the Senate 17 Feb 1870, signed into law 23 Feb 1870) (Statutes at Large, 16:67-68) [1] Full title: An act for an amicable settlement of limits with the state of Georgia, and authorizing the establishment of a government in the Mississippi territory. [2] Full title: An act to enable the people of the western part of Mississippi 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. [3] Full title: An Ordinance to dissolve the Union between the State of Mississippi and other States united with her under the Compact entitled, "The Constitution of the United States of America". Last updated on: 15 Dec 2017 21:00:00