This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
For roughly a century, with one interruption, the Byzantine state itself banned the art form it is now best known for. The Iconoclasm controversy opened in 726, when Emperor Leo III moved against the veneration of religious images on the theological grounds that icon worship risked collapsing into idolatry, given how literally many worshippers treated a painted or mosaic image's power. Existing icons and figural mosaics were destroyed or plastered over across the empire, image makers lost imperial patronage, and the theological argument ran for decades in church councils on both sides, iconoclasts citing the Second Commandment's ban on graven images, iconodules answering that an image of Christ honored his genuine, physical incarnation rather than claiming to contain divinity itself. A brief restoration of images under Empress Irene in 787 did not hold, and a second iconoclast period followed from 814 before image veneration was restored for good in 843, an event the Orthodox church still marks annually as the Triumph of Orthodoxy. What is notable in hindsight is how little the tradition's visual language changed once painting resumed. The frontal, hieratic figure style, the gold ground, the flattened sense of space, all reappear after 843 essentially intact, suggesting the controversy had been a genuine theological argument about images as such rather than a rejection of the specific visual conventions Byzantine artists had already developed before the ban.