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.
Admission to the bar in the United States Court, have separate admission requirements. The Tax Court is unusual in that a non-attorney may be admitted to practice. However, the non-attorney must take and pass an examination administered by the Court to be admitted, while attorneys are not required to take the exam. Most members of the Tax Court bar are attorneys. Admission to the Court of Appeals for the Federal Circuit is open to any attorney admitted to practice and in good standing with the U.S. Supreme Court, any of the other federal courts of appeal, any federal district court, the highest court of any state, the Court