Polygamy and the Latter Day Saint movement

Polygamy (more specifically, polygyny, called plural marriage by Mormons in the 19th century or the Principle by modern fundamentalist practitioners of polygamy) was taught by leaders of The Church of Jesus Christ of Latter-day Saints (LDS Church) for more than half of the 19th century, and practiced publicly from 1852 to 1890 by a minority of Latter-day Saint families (between 20 percent and 30 percent).