Byzantine Iconoclasm
Byzantine Iconoclasm (, literally, "image struggle" or "war on icons") refers to two periods in the history of the Byzantine Empire when the use of religious images or icons was opposed by religious and imperial authorities within the Orthodox Church and the temporal imperial hierarchy. The First Iconoclasm, as it is sometimes called, existed between about 726 and 787. The Second Iconoclasm was between 814 and 842. According to the traditional view, Byzantine Iconoclasm was started by a ban on religious images by Emperor Leo III and continued under his successors. It was accompanied by widespread destruction of images and persecution of supporters of the veneration of images. The pope remained firmly in support of the use of images throughout the period, and the whole episode widened the growing divergence between the Byzantine and Carolingian traditions in what was still a unified church, as well as facilitating the reduction or removal of Byzantine political control over parts of Italy.