Ella's Timeline By bravebobcats Feb 14, 1912 Arizona beccame a state Jan 1, 1919 The Grand canyon natoinal park is established Jan 1, 1936 Hoover dam is completed Jan 1, 1940 population is 99,261.and Arizona is known as the Grand canyon state Jan 1, 1948 Arizona's native amercains are given the right to vote Jan 1, 1960 Population increased to 1,302,161 Jan 1, 1975 Raul H. Castro became the first mexican amercain govner of Arizona Jan 1, 1985 Te central Arizona progect brought more water from the Colorado river to Pheonixn,and in 1991 to Tucson Jan 1, 2001 The Arizona daimondbacks win the world series Feb 14, 2012 Arizona has been a state for 100 years!