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.
1799 State of the Union Address to be given at Congress Hall, Philadelphia. 1799 State of the Union Address The 1799 State of the Union Address was given to the United States Congress, on Tuesday, December 3, 1799, by the second president of the United States, John Adams. He said, "the return of health, industry, and trade to those cities which have lately been afflicted with disease, and the various and inestimable advantages, civil and religious, which, secured under our happy frame of government, are continued to us unimpaired, demand of the whole American people sincere thanks to a benevolent Deity for the merciful dispensations of