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Religious dignitaries enter Paris' Notre Dame Cathedral as part of a ceremony for its 850th anniversary , Wednesday, Dec. 12, 2012. Paris' Notre Dame Cathedral is kicking off its 850th anniversary celebrations, which will include new bells for the medieval landmark, cast in a foundry in Normandy. (AP Photo/Christophe Ena)

Notre Dame celebrates 850 years

Nine enormous new bronze bells have made their way at Notre Dame Cathedral, helping the medieval edifice to rediscover its historical harmony. The cathedral celebrated its 850th anniversary on Dec. 12, 2012.