Candlemas, also known as the Feast of the Presentation of Jesus Christ, the Feast of the Purification of the Blessed Virgin Mary, or the Feast of the Holy Encounter, is a Christian feast day commemorating the presentation of Jesus at the Temple by Joseph and Mary. It is based upon the account of the presentation of Jesus in Luke 2:22–40. According to the Old Testament rules in Leviticus 12, a woman was to be purified by presenting a lamb as a burnt offering, and either a young pigeon or dove as sin offering, 33 days after a boy's circumcision. The feast falls on 2 February, which is traditionally the 40th day of and the conclusion of the Christmas–Epiphany season.

Pope Gelasius I was the bishop of Rome from 1 March 492 to his death on 19 November 496. Gelasius was a prolific author whose style placed him on the cusp between Late Antiquity and the Early Middle Ages. Some scholars have argued that his predecessor Felix III may have employed him to draft papal documents, although this is not certain.