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.
Revised Julian calendar grace, presumably including its acceptance of the new calendar. The basic justification for the new calendar is the known errors of the Julian calendar, which will in the course of time lead to a situation in which those following the Julian calendar will be reckoning the month of December (and the feast of Christ's Nativity) during the heat of summer, August and its feasts during the deep cold of winter, Easter during the autumn season, and the November feasts in the springtime. This would conflict with the Church's historic practice of celebrating Christ's birth on , a date chosen for