“On the fifth day of Christmas, my true love gave to me, five gold rings ...”
The fifth day's gift of gold rings (or "golden rings" in some versions) refers not to gold jewelry, but to a characteristic of the ring-necked pheasant. This becomes significant later. Day after tomorrow. You'll have to wait for that.
But you don't have to wait for today's feast, which in the western Church is that of St Thomas à Becket, also known as Thomas of Canterbury, where he was Archbishop at the time of his death. Born around 1162, he became the confidant and High Chancellor of King Henry II of England. Then the King got the idea for Thomas, already an archdeacon, to be consecrated Archbishop of Canterbury and Primate of All England. This did not have the effect for which the King had hoped. Eventually, Thomas was embroiled in conflict with Henry over the rights and privileges of the Church, and was assassinated by the King's followers in Canterbury Cathedral, on this day in 1170. He was canonized less than four years later by Pope Alexander III.
This story became the subject of a stage play, and eventually the great 1964 film, Becket, starring Richard Burton as Thomas Becket and Peter O'Toole as King Henry. It won an Academy Award for Best Screenplay, and received eleven other nominations, including Best Actor (Burton and O'Toole).
Following an extensive restoration process, the original 1964 film was made available in limited theatrical re-release in 2007. It is currently available on DVD. More information is available at the website: becketthemovie.com.
Finally, today not only falls within the Twelve Days, but within the Eight, thus it is the "Sunday Within Octave of Christmas" in the traditional Roman calendar, where the Gospel account is that of Mary and Joseph encountering the Prophet Simeon and the Prophetess Anna in the Temple where the Santo Niño has been presented. In the reformed Roman calendar, today is the Feast of the Holy Family, having been moved from the Sunday after the Epiphany in the calendar reform of 1969. Don't ask me why.
Be that as it may, the celebration of the Nativity continues.
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It is a little-known fact that today, the Western church also celebrates the feast of an Old Testament figure, none other than King David. In the West, we rarely address Old Testament people as "Saint So-and-so," although it is quite common in the East. ("Saint Elias," for example, is a popular name for Eastern Catholic and Orthodox parishes, otherwise rendered as "Elijah.") As to "Saint David," Shawn Tribe of New Liturgical Movement provides commentary.