Utah History By jeadeenk Apr 25, 1846 Mexican War began Feb 19, 1854 The grasshopper plagues endanger crops Sep 17, 1863 Discovery of silver and lead in Brigham Canyon Dec 31, 1879 The first telephone service was established in Ogden Feb 19, 1887 The Edmunds- Tucker Act was passed by congress Jan 4, 1896 Utah became the 45th state Mar 20, 1909 Discovery of Rainbow Bridge Jun 30, 1911 strawberry reservoir was completed Sep 15, 1928 Bryce Canyon national park was established Nov 26, 1930 During the great depression more than 500 men came into the town from around different sections of the state looking for work Feb 19, 1942 topaz operated near delta Apr 11, 1956 congress creates Colorado river storage project Aug 17, 1964 Flaming Gorge Dam on the Green River is dedicated Jan 18, 1970 (mormon) president David O' Mckay died Oct 8, 1981 A explosive device at the university of Ut. was defused May 30, 1994 (mormon) president Ezra Taft Benson died Jan 13, 2001 A small airplane crashed in the Great Salt lake killing all 9 people on board.