Brigham Young was the second president of the Latter-day Saints (Mormons) who, after the murder of founder Joseph Smith, led the Mormon migration to the Salt Lake Valley in 1847, escaping religious persecution and turning a Second Great Awakening movement into a major force in western settlement.
Brigham Young took over leadership of the Church of Jesus Christ of Latter-day Saints (the Mormons) after founder Joseph Smith was killed by a mob in Illinois in 1844. Facing relentless persecution in the East and Midwest, Young organized one of the most dramatic mass migrations in American history, leading thousands of Mormons across the plains to the Salt Lake Valley starting in 1847. There, beyond the reach of hostile neighbors (and, at first, the U.S. government), he built a tightly organized religious community that became Utah.
For APUSH, Young matters because he's the bridge between two big stories. Mormonism was born out of the Second Great Awakening (Topic 4.10), the wave of Protestant religious revival fueled by democratic and individualistic beliefs, a reaction against rationalism, and the upheavals of the market revolution (KC-4.1.II.A.i). Young then carried that religious energy west, making the Mormon migration a textbook example of how religion shaped settlement patterns during American expansion.
Brigham Young lives in Unit 4: American Expansion, 1800-1848, under Topic 4.10 (The Second Great Awakening). He supports learning objective APUSH 4.10.A, explaining the causes of the Second Great Awakening, because Mormonism is the clearest example of a brand-new religious movement born from that revival energy. The CED points to democratic and individualistic beliefs, a backlash against rationalism, and greater social and geographical mobility as causes of the awakening. Young's story checks every box, especially the mobility one. His group literally moved a thousand miles to practice its faith. He also feeds directly into the American and Regional Culture and Migration themes, since the Mormon trek is a go-to example of religiously motivated westward migration.
Keep studying APUSH Unit 4
Mormon Migration (Unit 4)
This is the event Young is famous for. After Joseph Smith's murder in 1844, Young organized the move from Illinois to the Salt Lake Valley in 1847. If a question mentions Young, it's almost always testing whether you can explain why the Mormons left (persecution) and what their migration shows about westward expansion.
Second Great Awakening (Unit 4)
Mormonism didn't appear out of nowhere. It emerged from the same revival environment that produced camp meetings and new denominations. Young's church is your best example that the awakening created entirely new religious movements, not just bigger Methodist and Baptist congregations.
Salt Lake City and Deseret (Unit 4)
Young didn't just lead a migration; he built a society. The Mormons proposed a huge state called Deseret, and Salt Lake City became its hub. This shows how religious communities could shape the political geography of the West, which later created friction with the federal government over Utah statehood.
Antebellum Reform Movements (Unit 4)
The Second Great Awakening also fueled temperance, abolition, and asylum reform. Young's Mormons took a different path. Instead of reforming American society, they built a separate, utopian-style community. That contrast (reform vs. withdrawal) is a great comparison point for essays.
Brigham Young usually shows up in multiple-choice or short-answer questions about the Second Great Awakening or westward migration. A typical MCQ gives you an excerpt about the Mormon trek or persecution of the church and asks what caused the movement (revivalism, religious persecution) or what it reflects (religiously motivated migration west). No released FRQ has used Young's name verbatim, but the Mormon migration is strong evidence for essays about the effects of the Second Great Awakening or causes of westward expansion. The move that earns points is connecting the religious cause (a new faith born from revivalism, then persecuted) to the migration effect (settlement of the Salt Lake Valley). Don't just name-drop Young; explain that cause-and-effect chain.
Joseph Smith founded the Mormon church in upstate New York in 1830 and wrote the Book of Mormon; he was killed by a mob in Illinois in 1844. Brigham Young is the successor who led the church afterward and organized the migration to Utah in 1847. Easy way to remember it: Smith started the religion, Young moved it west. If a question is about the founding of Mormonism during the Second Great Awakening, that's Smith. If it's about the trek to the Salt Lake Valley, that's Young.
Brigham Young became the second president of the LDS Church after founder Joseph Smith was murdered in Illinois in 1844.
Young led the Mormon migration to the Salt Lake Valley beginning in 1847, fleeing religious persecution in the East and Midwest.
Mormonism grew out of the Second Great Awakening, so Young connects religious revivalism (Topic 4.10) directly to westward expansion.
The Mormon settlement of Utah, including the proposed state of Deseret and Salt Lake City, shows how religion shaped settlement patterns in the American West.
On the exam, use Young as evidence that the Second Great Awakening produced new religious movements with real demographic and geographic consequences, not just bigger revival meetings.
He led the Mormon migration from Illinois to the Salt Lake Valley starting in 1847 and served as the second president of the LDS Church. In APUSH, he's the link between the Second Great Awakening (Topic 4.10) and westward expansion.
No. Joseph Smith founded the church in 1830 in upstate New York. Young took over leadership after Smith was killed in 1844, then organized the move west to Utah.
Smith founded Mormonism and wrote the Book of Mormon; Young led the church after Smith's death and directed the 1847 migration to the Salt Lake Valley. Smith equals founding, Young equals the trek west.
Religious persecution. Mormons had been driven out of New York, Ohio, Missouri, and Illinois, and Smith's murder in 1844 made it clear they needed a place beyond hostile neighbors. The remote Salt Lake Valley offered that isolation.
Mormonism was one of the new religious movements born during the Second Great Awakening, which the CED ties to democratic beliefs, a reaction against rationalism, and the market revolution (KC-4.1.II.A.i). Young carried that revival-era movement west, making him evidence for the awakening's long-term effects.
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