Utah History By Mr. Waffles 123 Jul 24, 1847 Brigham Young enters Utah Sep 11, 1857 Mountain Meadows Massacre May 10, 1869 Transcontinental Railroad completed at Promitory Summit Jul 30, 1870 First non-mormon building built in Utah Mar 23, 1882 The Edmunds Act Jan 4, 1896 Utah pronounced a state Apr 6, 1904 The second manifesto occurs Oct 19, 1916 Utah state captiol dedicated May 28, 1920 Morrell Cabin built by Paul Christenson Dec 1, 1939 Hill Field (air force base) is officialy declared by the War Department Jan 1, 1946 First ski lift built in snow park Park City Jan 1, 1950 Testing nuclear weapons Sep 22, 1966 Glen Canyon Dam dedicated which created Lake Powell Jun 8, 1979 Jazz are given permission to move to Salt Lake City by the NBA Feb 14, 1982 Last mine closes in Park City Mar 12, 1995 Gordon B. Hinckley is named President of the Mormon church Feb 8, 2002 The Olympics start in Utah Feb 10, 2011 Jerry Sloan retires from the Utah Jazz, replaced by Tyrone Corbin