The Announcement of the Universal Apostasy.
It is a most startling announcement with which the Prophet Joseph Smith begins his message to the world. Concerning the question, he asked God--"Which of all the sects is right, and which shall I join?" he says:
HISTORY
of the CHURCH OF JESUS CHRIST
of LATTER-DAY SAINTS

Hardly anyone in America knows this today, but Joseph Smith and his Mormons not only owned slaves in states of New York, Ohio and Illinois, which were all "northern states" that didn't allow slavery, the Utah was the only slave territory in the western territories and Brigham Young and his Mormons actually enslaved the Indians in the Utah Territory. Consequently, Joseh Smith's real "First Vision", which occurred in 1820, was the coming end of slavery in states north of the Mason-Dixon LIne.
Joseph Smith’s secret Mormon “Doctrine of Cain” and Today’s “Two-Seeds Doctrine”
The Mormon Wars and Joseph Smith's 1831 "9/11" Prophecy