Alamogordo Museum of History Alamogordo Museum of History The Tularosa Basin Museum of History, formerly the Tularosa Basin Historical Society Museum, is a history museum holding a collection of historical photographs, documents, and relics from Otero County, New Mexico. The museum is located in Alamogordo, New Mexico, and is owned and operated by the Tularosa Basin Historical Society. The prize item in the collection is a 47-star U. S. flag. New Mexico was admitted to the union as the 47th state on January 6, 1912, followed by Arizona as the 48th state on February 14, 1912. The Flag Act of 1818 specifies "That on
Admission to the Union phrase, "new States shall be admitted on the same terms with the original States", in the "new states" clause was defeated. That proposal would have taken the policy articulated in the Ordinance of 1784 and made it a constitutional imperative. Many delegates objected to including the phrase however, fearing that the political power of future new western states would ultimately overwhelm that of the established eastern states. Delegates, understanding that the number of states would inevitably increase, did agree to include wording into this clause to preclude formation of a new state out of an established one without the consent