The Feast of Christ the King.

The Solemnity of Our Lord Jesus Christ, King of the Universe, commonly referred to as the Feast of Christ the King, Christ the King Sunday or Reign of Christ Sunday, is a relatively recent addition to the Western liturgical calendar, instituted in 1925 by Pope Pius XI for the Roman Rite of the Catholic Church. In 1970 its Roman Rite observance was moved to the final Sunday of Ordinary Time. The earliest date on which it can occur is 20 November and the latest is 26 November.