of Native Americans. Salt Lake City replaced Fillmore as the territorial capital in 1856. By 1850, there were around 100 black people in the territory, the majority of whom were slaves. In Salt Lake County, 26 slaves were counted. In 1852, the territorial legislature passed the Act in Relation to Service and the Act for the relief of Indian Slaves and Prisoners formally legalizing slavery in the territory. Slavery was abolished in the territory during the Civil War. In 1850, Salt Lake City sent out a force known as the Nauvoo Legion and engaged the Timpanogos in the Battle at Fort Utah. Disputes between the Mormon inhabitants and the U.S. government intensified due to the practice of plural marriage, or polygamy, among members of the LDS Church. The Mormons were still pushing for the establishment of a State of Deseret with the new borders of the Utah Territory. Most, if not all, of the members of the U.S. government opposed the polygamous practices of the Mormons. Members of the LDS Church were viewed as un-American and rebellious when news of their polygamous practices spread. In 1857, particularly heinous accusations of abdication of government and general immorality were leveled by former associate justice William W. Drummond, among others. The detailed reports of life in Utah caused the administration of James Buchanan to send a secret military "expedition" to Utah. When the supposed rebellion should be quelled, Alfred Cumming would take the place of Brigham Young as territorial governor. The resulting conflict is known as the Utah War, nicknamed "Buchanan's Blunder" by the Mormon leaders. In September 1857, about 120 American settlers of the Baker–Fancher wagon train, en route to California from Arkansas, were murdered by Utah Territorial Militia and some Paiute Native Americans in the Mountain Meadows massacre. Before troops led by Albert Sidney Johnston entered the territory, Brigham Young ordered all residents of Salt Lake City to evacuate southward to Utah Valley and sent out the Nauvoo Legion to delay the government's advance. Although wagons and supplies were burned, eventually the troops arrived in 1858, and Young surrendered official control to Cumming, although most subsequent commentators claim that Young retained true power in the territory. A steady stream of governors appointed by the president quit the position, often citing the traditions of their supposed territorial government. By agreement with Young, Johnston established Camp Floyd, away from Salt Lake City, to