Arizona by corbin By hiddenvalley5 Jan 1, 1889 Phoenix becomes the capital of Arizona Jan 12, 1911 Roosevelt dam project completed Feb 14, 1912 Arizona becomes a state Jan 1, 1919 Arizona national park established May 13, 1936 Hoover Dam completed and deticated Jan 1, 1948 Arizona Native Americans won the right the to vote May 14, 1968 London Bridge moved from Englan to Lake Havasu AZ