726: Emperor Leo III publicly professes his opposition to icon veneration.
January 730: An imperial edict against icon veneration is issued.
February-August 754: Iconoclastic council of Hieria
771-772: Persecution of iconodule monks in the theme of Thrakesion by the strategos Michael Lachanodrakon.
fall of 787: The Seventh Ecumenical Council in Nicaea restores the icons. The end of the first phase of the Iconoclasm.
815: A council in Constantinople bans icon veneration once again. Second phase of the Iconoclasm.
833: Theophilos issues a new iconoclastic edict.
838: The iconodules are anathematized by the patriarch Ioannes Grammatikos.
March 843: Empress Theodora finally restores the icons. Iconoclasm comes to an end.