4 October 1840 (Sunday Morning).
Times and Seasons 1 (October 1840): 186
President Joseph Smith jr. then arose and delivered a discourse on the subject of baptism for the dead, which was listened to with considerable interest, by the vast multitude assembled.
—4 October 1840
 See History of the Church, 4:206. Not in Teachings. The History of the Church entry is based on the Times and Seasons account given in the text. The following account mentions a discourse that Joseph Smith delivered at the October 1840 General Conference of the Church.