Historic events in New Mormon History on 2/23
1856: Brigham Young exhibits brown seer stone obtained from Oliver Cowdery’s widow. He explains that Smith used this stone to find gold plates of Book of Mormon.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1859: first counselor Heber C. Kimball tells apostles "there are thousands of prophets among the Gentiles and spiritualists that have not repented or obeyed the gospel."
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1862: Brigham Young preaches that the concept of Mother in Heaven is as essential as the concept of Father in Heaven.
Source: See
The Mormon Hierarchy - Extensions of Power by D. Michael Quinn
1896: Apostle Heber J. Grant ordains his dying seven-year-old son to the office of elder, "and I blessed him with all the earnestness of my soul, and dedicated him to the Lord to live or die which ever was His will, and covenanted with the Lord if he would spare my only son, and give him life and strength that I would dedicate his time to the service of the Lord and do all in my power to teach him the ways of truth and righteousness." Heber Jr. dies four days later.
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.