| 24 Feb 1863 |
part of the Territory of New Mexico is erected into a temporary government by the name of the Territory of Arizona in accordance with an act passed by the Congress of the United States (House of Representatives on 8 May 1862, Senate on 20 Feb 1863), signed into law on 24 Feb 1863 (Statutes at Large, 12:664-665) [1] |
| 24 Feb 1863 - 14 Feb 1912 |
Territory of Arizona |
| 20 Jun 1910 |
the people of the territories of New Mexico and Arizona are authorized to form constitutions and state governments in accordance with an act of the Congress of the United States (passed by the House of Representatives on 17 Jan 1910; Senate on 16 Jun 1910 with amendments, House concurred in on 18 Jun 1910), signed into law on 20 Jun 1910 (Statutes at Large, 36:557-579) [2] |
| 9 Dec 1910 |
the Constitution of the State of Arizona is adopted and signed by members of the Convention at the session held in Phoenix on 9 Dec 1910 (Arizona Constitutional Convention 1910, pp. 433-435) |
| 21 Aug 1911 |
the admission of the territories of New Mexico and Arizona is agreed upon, subject to the fulfillment of certain conditions, in accordance with a joint resolution of the Congress of the United States (passed by the House of Representatives on 23 May 1911; Senate on 8 Aug 1911 with amendments, House concurred in on 10 Aug 1911), approved by the President of the United States on 21 Aug 1911 (Statutes at Large, 37:39-43) [3] |
| 14 Feb 1912 |
the Constitution of the State of Arizona as amended is ratified by popular vote held on 12 Dec 1911, the results are certified by proclamation issued by the Governor of the Territory of Arizona on 3 Feb 1912; Arizona is admitted to the United States in accordance with the act of Congress approved on 21 Aug 1911, taking effect upon the issuance of a proclamation by the President of the United States on 14 Feb 1912 (Arizona Daily Star, No, 31, 7 Feb 1912, p, 9; Statutes at Large, 37:1728-1729) |
| 14 Feb 1912 - |
State of Arizona |
