Arizona states of Sonora and Baja California. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912, coinciding with Valentine's Day. Historically part of the territory of "Alta California" in New Spain, it became part of independent Mexico in 1821. After being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase. Southern Arizona is known for its desert climate, with very hot summers and mild winters.
1912 State of the Union Address garrisons of our various insular possessions, we have to-day within the continental United States a mobile Army of only about 35,000 men. This little force must be still further drawn upon to supply the new garrisons for the great naval base which is being established at Pearl Harbor, in the Hawaiian Islands, and to protect the locks now rapidly approaching completion at Panama." 1912 State of the Union Address The 1912 State of the Union Address was given on Tuesday, December 3, 1912. It was written by William H. Taft, the 27th President of the United States. He stated, "The