People dressed in traditional Russian clothes dance during the celebration of Orthodox Christmas in St.Petersburg, Russia, Thursday, January 7, 2016. Russian Orthodox believers celebrate Christmas by the Julian calendar on Jan. 7. (Photo by Dmitry Lovetsky/AP Photo)





An actor dressed as Grandfather Frost, the Russian Santa Claus, walks next to a statue of Soviet Union founder Vladimir Lenin during celebration of Orthodox Christmas in St.Petersburg, Russia, Thursday, January 7, 2016. (Photo by Dmitry Lovetsky/AP Photo)





A woman dressed in traditional Russian clothes strokes a goat during the celebration of Orthodox Christmas in St.Petersburg, Russia, Thursday, January 7, 2016. (Photo by Dmitry Lovetsky/AP Photo)





People dressed in traditional Russian clothes dance during the celebration of Orthodox Christmas in St.Petersburg, Russia, Thursday, January 7, 2016. (Photo by Dmitry Lovetsky/AP Photo)





A girl holds at a candle after the holy Christmas liturgy, in front of St. Clement's Cathedral church in Skopje, Macedonia, Thursday, January 7, 2016. Macedonian Christian Orthodox believers celebrate Christmas by the Julian calendar. (Photo by Boris Grdanoski/AP Photo)





Russian Prime Minister Dmitry Medvedev, left, crosses himself as he attends the midnight Christmas Mass in the Christ the Savior Cathedral in Moscow, Wednesday, January 6, 2016. Orthodox Christians celebrate Christmas on Jan. 7, in accordance with the Julian calendar. (Photo by Alexander Astafyev, Sputnik, Government Pool Photo via AP Photo)





A woman breaks traditional Christmas bread to mark the Orthodox Christmas Day festivities in Belgrade, Serbia, Wednesday, January 7, 2016. Children traditionally scramble for a piece of the bread, searching for a gold coin, hidden inside. (Photo by Darko Vojinovic/AP Photo)





People gather to receive a piece of traditional Christmas bread to mark the Orthodox Christmas Day festivities in Belgrade, Serbia, Wednesday, January 7, 2016. (Photo by Darko Vojinovic/AP Photo)





A woman breaks traditional Christmas bread to mark the Orthodox Christmas Day festivities in Belgrade, Serbia, Wednesday, January 7, 2016. (Photo by Darko Vojinovic/AP Photo)





People gather to receive a piece of traditional Christmas bread to mark the Orthodox Christmas Day festivities in Belgrade, Serbia, Wednesday, January 7, 2016. (Photo by Darko Vojinovic/AP Photo)





People wait to receive a piece of traditional Christmas bread, marking the Orthodox Christmas Day festivities in Belgrade, Serbia January 7, 2016. (Photo by Marko Djurica/Reuters)





People gather to receive a piece of traditional Christmas bread to mark the Orthodox Christmas Day festivities in Belgrade, Serbia, Wednesday, January 7, 2016. (Photo by Darko Vojinovic/AP Photo)





People break traditional Christmas bread to mark the Orthodox Christmas Day festivities in Belgrade, Serbia, Wednesday, January 7, 2016. (Photo by Darko Vojinovic/AP Photo)





People gather to receive a piece of traditional Christmas bread, marking the Orthodox Christmas Day festivities in Belgrade, Serbia January 7, 2016. Serbian Orthodox believers celebrate Christmas on January 7, according to the Julian calendar. (Photo by Marko Djurica/Reuters)





People gather to receive a piece of traditional Christmas bread, marking the Orthodox Christmas Day festivities in Belgrade, Serbia January 7, 2016. (Photo by Marko Djurica/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. Kolyada is a pagan winter holiday, which over the centuries has merged with Orthodox Christmas celebrations in some parts of Belarus. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





People celebrate the pagan rite called "Kolyadki" in the village of Skirmantava, Belarus, January 7, 2016. (Photo by Vasily Fedosenko/Reuters)





A child lights a candle during a Christmas Eve service at the Protection of the Holy Virgin Russian Orthodox Church in Sydney, Australia, 06 January 2016. The majority of the Orthodox churches worldwide celebrate Christmas on January 7, adopting the Julian calendar created under the reign of Julius Caesar in 45 BCE, electing not to use the Gregorian calendar as other Christian denominations do. (Photo by Mick Tsikas/EPA)





Ukrainians wearing traditional costumes sing Kolyadky or Ukrainian Christmas Carols, as a part of Orthodox Christmas in Kiev, Ukraine, Thursday, January 7 2016. Orthodox Christians mark their traditional Christmas Day Jan. 7, with many ancient symbolic events. (Photo by Sergei Chuzavkov/AP Photo)