In November 2017, a provocation appeared in the Facebook feeds of 3,000 Mormon parishioners. It was a sponsored post crafted in the gauzy style of one of the Mormon church’s own Facebook ads, but addressing a seldom-discussed truth about the early history of the church and its founding patriarch, Joseph Smith. “Why did Joseph marry a 14 year old girl?” the post asked. “The church has answers. Read them here.” Below the text was a photo of a gold wedding band balanced across the inside spine of an open Book of Mormon.