Arizona Territory 1877. The capital was finally moved to Phoenix on February 4, 1889. The territory was admitted to the Union as the 48th state on February 14, 1912. Proclamation to the People of Arizona. Arizona Territory The Territory of Arizona (also known as Arizona Territory) was a territory of the United States that existed from February 24, 1863 until February 14, 1912, when the remaining extent of the territory was admitted to the Union as the state of Arizona. It was created from the western half of the New Mexico Territory during the American Civil War. Following the expansion of the
This Will Be the Death of Us released on July 21. Two days later, a music video was released for "This Will Be the Death of Us". Further dates were added, extending the tour into late August. On September 28, a music video was released for "Summer Jam". Between late September and mid-November, the band supported on Mayday Parade on the AP Fall Ball Tour. In December, the group went on a UK tour. In January and February 2010, the group supported Motion City Soundtrack on their headlining tour of the US, which was followed by performances at Soundwave festival in Australia in February and March. Between