Utah History By Bodaggle Jul 14, 1846 First pioneers to arrive in utah Jul 17, 1853 Walker war Apr 9, 1865 Black hawk war May 5, 1873 Polygamy outlawed by congress Mar 3, 1887 Edmunds Tucker act is passed Oct 6, 1890 Wilford Woodruff Aug 14, 1909 Discovery of rainbow bridge