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Every year on the first Sunday of Great Lent we celebrate the Triumph of Orthodoxy in commemoration of the day in 843 C.E. (or AD for those non-academic theologians) on which the Edict of the Seventh Ecumenical Council (787 C.E.) which restored icons within the Church was brought into full force in the city of Constantinople through the actions of a local council of Bishops at the Hagia Sophia.