Brigham Young Leads Pioneers into Salt Lake Valley

Context

Joseph Smith founded the Church of Christ in 1830 in upstate New York after publishing the Book of Mormon, which he presented as a translation of ancient records. The new religious movement attracted thousands of converts and established communities in Ohio, Missouri, and Illinois, though its unorthodox teachings and practices, including plural marriage, provoked hostility from neighbors and local authorities.

What Happened

After Smith's murder in 1844 at the Carthage jail in Illinois, Brigham Young emerged as the principal leader of the Latter-day Saints and organized a mass exodus from Nauvoo. In 1846 the main body moved into western Iowa for the winter while Young assembled a smaller vanguard of 148 people, among them three women and two children, to scout a remote destination. The party followed established trails westward for more than 1,300 miles; most members reached the valley of the Great Salt Lake by July 22, 1847.

Aftermath

Young, delayed by mountain fever, entered the valley on July 24 in Wilford Woodruff's carriage. He surveyed the dry basin at the foot of the Wasatch Mountains and confirmed it as the intended site. The group immediately began plowing ground, diverting water from City Creek for irrigation, and sketching the layout of what would become Salt Lake City.

Legacy

Within months additional wagon trains arrived, and by 1852 roughly 16,000 Latter-day Saints had settled in the valley. Systematic irrigation converted arid land into productive farmland, supporting rapid population growth and the later creation of the Utah Territory. The episode established the institutional and cultural foundations of modern Utah and continues to be commemorated each July 24 as Pioneer Day in Utah and neighboring states.