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.
48th Ohio Infantry 48th Ohio Infantry The 48th Ohio Volunteer Infantry (or 48th OVI) was an infantry regiment in the Union Army during the American Civil War. The 48th Ohio Infantry was organized at Camp Dennison near Cincinnati, Ohio September through December 1861 and mustered in February 17, 1862, for three years service under the command of Colonel Peter John Sullivan. The regiment was attached to District of Paducah, Kentucky, to March 1862. 4th Brigade, 5th Division, Army of the Tennessee, to May 1862. 3rd Brigade, 5th Division, Army of the Tennessee, to July 1862. 3rd Brigade, 5th Division, District of Memphis, Tennessee,