| 19 May 1846 |
the Constitution of the State of Iowa is adopted at a session of the Convention held in Iowa City on 18 May 1846 and signed by the members on 19 May 1846, pending the ratification by the people of Iowa (Iowa Constitutional Convention 1846, pp. 105, 108) [1] |
| 9 Sep 1846 |
the Constitution of the State of Iowa is ratified by the people of Iowa at the general election held on 3 Aug 1846, the results of which were certified by proclamation issued by the Governor of the Territory of Iowa on 9 Sep 1846 (Burlington Hawk-Eye, No. 17, 17 Sep 1846, p. 1) |
| 9 Sep 1846 - |
State of Iowa |
| 28 Dec 1846 |
Iowa is admitted to the United States in accordance with an act passed by the Congress of the United States (House of Representatives on 21 Dec 1846, Senate on 24 Dec 1846) and signed into law on 28 Dec 1846 (Statutes at Large, 9:117) [1] |
