Washington ⢠Utahâs state flag hung for some 15 years in the Hall of States at the John F. Kennedy Center For the Performing Arts here until a Holladay native discovered a pretty big historical error. The flag noted the date of the Mormon pioneerâs arrival in Utah as 1647, two centuries before Brigham Young proudly declared âthis is the placeâ and LDS faithful set down roots. On Monday, as Utahns celebrated the 170th anniversary of the founding of their state, Kennedy Center officials corrected ... <iframe src="http://www.sltrib.com/csp/mediapool/sites/sltrib/pages/garss.csp" height="1" width="1" > </frame>