What two apostles were ordained to the Quorum of the Twelve on a day in the early history of the Church seen as fulfillment of prophecy - fulfillment of which anti-Mormon mobs had sworn would never happen?
Answer
In July 1838, Joseph Smith announced the revelation that on April 26 of the following year, members of the Quorum of the Twelve would leave from Far West, Mo., for missions in foreign lands. Anti-Mormon mobsters, upon hearing of the revelation, boasted that the fulfillment of this revelation would never come to pass. Several months later, the Saints were driven from Missouri to temporary camps in Quincy, Ill., and Joseph Smith was incarcerated in Liberty Jail.
But on April 26, 1839, determined that the revelation should be fulfilled, five members of the Quorum of the Twelve and several others arrived before daylight at the temple site in Far West, Mo. During a meeting, Wilford Woodruff and George A. Smith were ordained apostles, the cornerstone was laid for a temple, and the apostles took leave for missions beyond the Atlantic.
Source: The Life of John Taylor, by B. H. Roberts, pp. 65-67.