Utah History By Eli the Midget Jul 24, 1847 Brigham Young comes to Utah Jan 4, 1850 Utah becomes a territory Mar 4, 1861 abraham lincoln is the new president May 5, 1879 polygamy is banned Mar 22, 1882 Edmunds-Tucker Act put into play Jan 4, 1896 utah is declared a state Jan 25, 1900 Brigham H. Roberts isn't allowed to be a congressman because he's a polygamist Oct 4, 1915 Pres. Woodrow Wilson established Dinosaur National Monument in Jensen, Utah. Mar 4, 1924 Coal Mine Explosion kills 171 people in Castle Gate, Utah Dec 5, 1933 Prohibition law is appealled Nov 18, 1946 Utah Air National Guard is founded Jun 11, 1958 1st Navajo tribal park is established