Christmas Girls

• Using the Julian calendar
Eastern Orthodox national churches, including those of Russia, Georgia, Ukraine, Macedonia, Montenegro, Serbia and the Greek Patriarchate of Jerusalem mark feasts using the older Julian calendar. December 25 on the Julian calendar currently corresponds to January 7 on the internationally-used Gregorian calendar. However, other Orthodox Christians, such as the churches of Greece, Romania, Antioch, Alexandria, Albania, Finland and the Orthodox Church in America, among others, began using the Revised Julian calendar in the early 20th century, which corresponds exactly to the Gregorian calendar. These Orthodox Churches celebrate Christmas on the same day as Western Christianity. Oriental Orthodox churches also use their own calendars, which are generally similar to the Julian calendar. The Armenian Apostolic Church celebrates the nativity in combination with the Feast of the Epiphany on January 6. Armenian churches customarily use the Gregorian calendar, but some use the Julian calendar and thus celebrate Christmas Day on January 19, and Christmas Eve on January 18 (according to the Gregorian calendar).
• Commemorating Jesus’ birth
Christians celebrate the birth of Jesus to the Virgin Mary as a fulfillment of the Old Testament's Messianic prophecy. The Bible contains two accounts which describe the events surrounding Jesus' birth. Depending on one's perspective, these accounts either differ from each other or tell two versions of the same story These biblical accounts are found in the Gospel of Matthew, namely Matthew 1:18, and the Gospel of Luke, specifically Luke 1:26 and 2:40. According to these accounts, Jesus was born to Mary, assisted by her husband Joseph, in the city of Bethlehem.