Historic events in New Mormon History on 12/17
1913: the death of Joseph Smith's last surviving plural wife, Mary E. Rollins Lightner. She helped save the still-unbound Book of Commandments from the printing office set afire by a mob in 1833. She witnessed the adoption of the 1835 D&C, which prohibited polygamy, and became a secret plural wife of Joseph Smith at Nauvoo while still living with her non-Mormon husband. She moved with her husband to Utah where she also witnessed polygamy's accepted practice in Mormon society, its "underground" survival despite federal raid, its official prohibition by the 1890 Manifesto, the renewal of authorized polygamy despite official denials, the Second Manifesto and disciplining of two apostles for post-Manifesto polygamy, the general disfavor of plural marriage by "modern" Latter-day Saints, and even the early stages of Fundamentalist polygamy.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1975: Robert I. McQueen, a returned LDS missionary, begins his service as the editor-in-chief of 'The Advocate,' a national magazine for gays and lesbians. He is excommunicated in 1979.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1984: David Fowers at age 19 is the youngest presidential elector in U.S. history to vote in the Electoral College election of the U.S. president.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
To see the whole database in chronological order,
Click here. Note that I'm not done entering all the information. While most of these facts come from Quinn's book, I'm seeking the primary sources for each, but this will take a long time.