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"
Commemoration of the Passion of Christ assigned to Friday after Ash-Wednesday, which day it still retains in the "Baltimore Ordo". The seven Offices of the Mysteries of the Passion of Christ were adopted by the City of Rome in 1831 and since then all the dioceses that have the feast of the Passion of Christ in their calendar keep it on the Tuesday after Sexagesima. By permission of Pope Leo XIII (8 May 1884) the octave in the calendar of the Passionists is privileged and admits only feasts of the first and second class. By a decree of 5 July 1883, the votive Office of the