Mountain Meadows massacre - an infamous American massacre

The Mormon Temple in Salt Lake City, Utah

The Mountain Meadows massacre was a series of Mormon attacks on the Baker–Fancher emigrant wagon train at Mountain Meadows in southern Utah. The attacks culminated on September 11, 1857, with the mass slaughter of the emigrant party by the Iron County district of the Utah Territorial Militia and some local Native Americans.
The wagon train—composed almost entirely of families from Arkansas—was bound for California on a route that passed through the Utah Territory during a turbulent period later known as the Utah War. After arriving in Salt Lake City, the Baker–Fancher party made their way south, eventually stopping to rest at Mountain Meadows. While the emigrants were camped at the meadow, nearby militia leaders, including Isaac C. Haight and John D. Lee, made plans to attack the wagon train. The militia, officially called the Nauvoo Legion, was composed of Utah's Mormon settlers (members of The Church of Jesus Christ of Latter-day Saints or LDS Church). Intending to give the appearance of Native American aggression, their plan was to arm some Southern Paiute Native Americans and persuade them to join with a larger party of their own militiamen—disguised as Native Americans—in an attack ...  Click here for the full story