The Entrance of the Theotokos into the Temple
November 21
According to the tradition of the Church, the Theotokos was brought to the Temple at three years of age, where she was consecrated to God and spent her days until she was fourteen or fifteen years old; and then, as a mature maiden, by the common counsel of the priests (since her parents had reposed some three years before), she was betrothed to Joseph.

Reading Courtesy of Holy Transfiguration Monastery