Feast of the Circumcision of Christ of Jesus. Pope John XXIII's 1960 rubrical and calendrical revision called 1 January simply the Octave of the Nativity. (This 1960 calendar was incorporated into the 1962 Roman Missal, whose continued use is authorized by the motu proprio "Summorum Pontificum".) The 1969 revision states: "1 January, the Octave Day of the Nativity of the Lord, is the Solemnity of Mary, the Holy Mother of God, and also the commemoration of the conferral of the Most Holy Name of Jesus." The Anglican communion's "Book of Common Prayer" liturgy celebrates this day as the Circumcision of Christ. Since 2000, the "Common Worship"
Feast of Christ the King this day is referred to as the Sunday of Doom, previously highlighting the final judgement, though after the Lectionary of 1983 the theme of the day was amended to the "Return of Christ". In the Church in Wales, part of the Anglican Communion, the four Sundays before Advent are called the "Sundays of the Kingdom" and Christ the King is observed as a season and not a single festal day. While the encyclical that established this feast was addressed, according to the custom of the time, to the Catholic Bishops, Pope Pius XI wanted the Feast to impact the laity: