Tolkien supplies a clue to the deepest meaning of The Lord of the Rings with regard to the specific date of the destruction of the Ring. The Ring is destroyed on March 25, the most significant and important date on the Christian calendar. This is the feast of the Annunciation, the date the Word is made flesh, when God becomes man. It is also the historic date of the Crucifixion, a fact that is all too often forgotten by modern Christians because Good Friday is celebrated as a moveable feast that falls on a different date each year.
