Feast of the Holy Name of Jesus when he was circumcised, he was called Jesus, the name given by the angel before he was conceived in the womb." Medieval Catholicism, and many other Christian churches to the present day, therefore celebrated both events as the Feast of the Circumcision of Christ, usually on 1 January. Bernardino of Siena placed great emphasis on the Holy Name, which he associated with the IHS Christogram, and may be responsible for the coupling of the two elements. In the Latin Rite Catholic Church it is observed as an optional memorial on 3 January by Catholics following the present General Roman Calendar.
Feast of the Circumcision of Christ 1). On the Julian calendar, 1 January will correspond, until 2100, to 14 January on the Gregorian Calendar. Accordingly, in Russia, 14 January in the civil calendar is known as "The Old New Year", since it corresponds to 1 January in the Julian Calendar, still used by the Church. At an early stage the Church in Rome celebrated on 1 January a feast that it called the anniversary ("Natale") of the Mother of God. When this was overshadowed by the feasts of the Annunciation and the Assumption, adopted from Constantinople at the start of the 7th century, 1 January began