Russian President Vladimir Putin attended midnight mass at the Church of Saints Simeon and Anna in Saint Petersburg on Sunday, as Russia celebrated Orthodox Christmas. Russian leader reportedly presented the church with a 19-century icon upon arrival. According to media, it is the same church where Putin's father was baptized. Prime Minister Dmitry Medvedev attended mass in the Christ the... Еще Saviour Cathedral in Moscow, where the service was led by Patriarch Kirill. Russian Orthodox Christians celebrate Christmas in accordance with the Julian calendar on January 7, 13 days later than those who use the Gregorian calendar.