Monophysite heresy

(5th–6th century AD) Doctrine that emphasized the single nature (the term means literally “of one nature”) of Christ, as a wholly divine being rather than part-divine and part-human. Monophysitism began to appear in the 5th century; though condemned as a heresy at the Council of Chalcedon (451), it was tolerated by such Byzantine leaders as Justin II, Theodora, and Zeno, resulting in a full-fledged schism between East and West. Several Monophysite churches, including the Coptic Orthodox Church, were founded in the 6th century.

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