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 the Holy Name of Jesus XIII. In the reform of Pope Pius X, enacted by his motu proprio "Abhinc duos annos" of 23 October 1913, it was moved to the Sunday between 2 and 5 January inclusive, and in years when no such Sunday existed the celebration was observed on 2 January; this is still observed by Catholics following calendars of 1914 to 1962. The reform of the liturgical calendar by the motu proprio "Mysterii Paschalis" of 14 February 1969 removed the feast "since the imposition of the name of Jesus is already commemorated in the office of the Octave of Christmas." However, the Mass