Divine Liturgy or Holy Liturgy is the usual name used in most Eastern Christian rites for the Eucharistic service.
Church of Saint Sava, Christmas, Belgrade, 7 January 2021
Mass of Paul VI (post–Vatican II)
Tridentine Mass (1962 missal), Solemn Mass form
Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus. Christmas Day is observed around the world, and Christmas Eve is widely observed as a full or partial holiday in anticipation of Christmas Day. Together, both days are considered one of the most culturally significant celebrations in Christendom and Western society.
Christmas Eve, an 1878 painting by J. Hoover & Son
Midnight Mass is held in many churches toward the end of Christmas Eve, often with dim lighting and traditional decorative accents such as greenery.
Advent wreath, lighting the candle
Typical Neapolitan nativity scene, or presepe or presepio, in Rome.