Historic events in New Mormon History on 10/21
1900: Alexander F. Macdonald performs a plural marriage in Mexico, his first since 1890. Second counselor Joseph F. Smith authorizes this without the knowledge of church president Lorenzo Snow, who later threatens to excommunicate this patriarch.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1971: First Presidency secretary Joseph Anderson writes that conscientious objectors can teach, partake of the sacrament, hold church offices, and receive temple recommends.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1973: A First Presidency letter urges 78,800 Mormons in Washington state to vote against a referendum to allow nineteen-year-olds to purchase and consume alcoholic beverages.
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.