His birth
The rise of the Church of Christ in these last days, being one thousand eight hundred and thirty years since the coming of our Lord and Savior Jesus Christ in the flesh, it being regularly organized and established agreeable to the laws of our country, by the will and commandments of God, in the fourth month, and on the sixth day of the month which is called April— Doctrine and Covenants 20:1
The Church dates its organization from the Savior's coming in the flesh, His birth.
How we know: the verse itself names Him · a footnote points to Him · a Church study aid lists it
- the same event in D&C 21:3 — the year of your Lord eighteen hundred and thirty
