[Utah War] At the conclusion of the Mexican War, the Treaty of Guadelupe Hidalgo ceded territory to the United States which included what became the Utah Territory. (1)
-- Mar 10, 1848
The U.S. Senate ratifies the Treaty of Guadalupe Hidalgo, making the treaty official and thus officially making the area part of the United States. (2)
-- May 19, 1848
[Deseret] the Treaty of Guadalupe Hidalgo ends the Mexican War; the United States gets more than one-half million square miles, including what will become the states of California, Nevada, Utah, most of New Mexico and Arizona, and parts of Wyoming and Colorado. Texas is also ceded to the United States.James Marshall discovers gold at Sutter's Mill in California (3)
-- May 29, 1848
[Heber C. Kimball] Leaves Winter Quarters to return to the Salt Lake Valley. (4)
-- 1848 May-June
Miracle of the seagulls in Salt Lake Valley. (5)
-- 1848, May-June
Crickets in the Salt Lake Valley devastated the crops. The fields were saved from complete destruction as flocks of seagulls consumed the crickets. (6)
-- During 1848 May
Presidents B. Young and Heber C. Kimball left Winter Quarters, the second time, for Great Salt Lake Valley. (7)
-- Jun 9, 1848
The Miracle of the Gulls occurs. It is attributed to saving the crops of the first settlers in Utah. (2)
-- Aug 21, 1848
[Lucy Mack Smith] Lyman Wight, who has just received a letter from William Smith about Lucy's poverty, writes indignantly from Zodiac, Texas, offering her "liberal support" in either Zodiac or Nauvoo. (8)
-- Sep 18, 1848
[Apostle John Henry Smith] Born at Carbunca (now Council Bluffs), Iowa. (9)
-- Sep 20, 1848
[Deseret] Alexander Neibaur arrived in Salt Lake City, Utah's first dentist. (10)
Presidents B. Young and H. C. Kimball arrived, the second time, in Great Salt Lake Valley. (7)
-- Sep 24, 1848
[Heber C. Kimball] Arrives again in the Salt Lake Valley. (4)
-- Oct 9, 1848
Arsonists burned Nauvoo Temple. (5)
-- Nov 19, 1848
The Nauvoo Temple was burned. (7)
-- During 1848 November
Oliver Cowdery rebaptized near Kanesville/Council Bluffs, Iowa. (5)
Footnotes:
1 - Hale, Van, Mormon Miscellaneous, Utah War Chronology, http://www.mormonmiscellaneous.com/utahwar/id2.html
2 - Wikipedia, 19th Century (Mormonism), http://en.wikipedia.org/wiki/19th_century_(Mormonism)
3 - Legends of America, Old West Timeline, http://www.legendsofamerica.com/WE-TimeLine2.html
4 - Kimball, Stanley B. (editor), On the Potter's Wheel: The Diaries of Heber C. Kimball, Chronology, Signature Books in association with Smith Research Associates, Salt Lake City, 1987
5 - Hemidakaota, "Church Chronology from 1800-2000," http://www.lds.net/forums/scripture-study-forum/12108-church-chronology-1800-2000-part-1-a.html#post214550
6 - Church of Jesus Christ of Latter-day Saints, Chronology of Church History, http://scriptures.lds.org/chchrono/contents
7 - Richards, Franklin Dewey and Little, James A., Compendium of the Doctrines of the Gospel, Church Chronology, Ch.66, p.306
8 - Anderson, Lavina Fielding, Editor, Lucy's Book: A Critical Edition of Lucy Mack Smith's Family Memoir, 2001, Signature Books
9 - White, Jean Bickmore, Church, State, and Politics, p.xviii, A John Henry Smith Chronology
10 - History to Go, Pioneers and Cowboys, http://historytogo.utah.gov/timeline/pioneersandcowboys.html
Mormon History Timeline /Chronology
http://lds-church-history.blogspot.com/
