May 4, 1842
Nauvoo, Illinois
Joseph Smith met with Hyrum Smith, Brigham Young, Heber C. Kimball, Willard Richards, Judge James Adams, Bishops Newel K. Whitney and George Miller, and Elder William Law in the upper room of the Red Brick Store, where he gave them instructions and the endowment.
Sources:
History of the Church, Joseph Smith, 5:1–2, 9
"The Sacred Departments for Temple Work in Nauvoo: The Assembly Room and the Council Chamber," Lisle G. Brown, BYU Studies 19:3
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