Source: RIA Novosti HARBIN, May 14 (RIA Novosti) – The leader of Russia’s Orthodox Church conducted a landmark service in the Chinese city of Harbin on Tuesday, the first in several decades. Patriarch Kirill, accompanied by a large Orthodox clergy delegation, sang a hymn celebrating Easter at a 1930-built cathedral in the city. Kirill’s visit to China, which began last week, is the first by a leader of the Russian Orthodox Church. Harbin, in northeast China, founded by imperial Russia in 1898, became a refuge for White Russian émigrés fleeing their homeland after their side lost the civil war in…