A girl lights a candle during a Christmas service in Kazan Cathedral in central Saint Petersburg, on January 6, 2021. Orthodox Christians celebrate Christmas on January 7 in the Middle East, Russia and other Orthodox churches that use the old Julian calendar instead of the 17th-century Gregorian calendar adopted by Catholics, Protestants, Greek Orthodox and commonly used in secular life around the world. (Photo by Olga Maltseva/AFP Photo)
