The Sunday of Orthodoxy is the first Sunday of Great Lent. The dominant theme of this Sunday since 843 has been that of the victory of the icons. In that year the iconoclastic controversy, which had raged on and off since 726, was finally laid to rest, and icons and their veneration were restored on the first Sunday in Lent. Ever since, this Sunday has been commemorated as the "Triumph of Orthodoxy."

The Seventh Ecumenical Council dealt predominantly with the controversy regarding icons and their place in Orthodox worship. It was convened in Nicaea in 787 by Empress Irene at the request of Tarasios, Patriarch of Constantinople. The Council was attended by 367 bishops.

Almost a century before this, the iconoclastic controversy had once more shaken the foundations of both Church and State in the Byzantine empire. Excessive religious respect and the ascribed miracles to icons by some members of…