- Cyril and Methodios
- Saints, apostles to the Slavs (q.v.), creators of the Glagolitic (q.v.) alphabet. Cyril was the monastic name taken by Constantine, sometimes referred to as Constantine the Philosopher because of his fame as a teacher of that subject. Cyril and his brother Methodios (q.v.) grew up in Thessalonike (q.v.) and they spoke the dialect that Slavs around the city spoke. Methodios had been a governor (archon) of a Slav principality in Macedonia (q.v.). Cyril was a brilliant linguist who had previously been sent on a diplomatic mission to the Khazars (q.v.). Their mission to Moravia (q.v.) in 863 was requested of Michael III (q.v.) by prince Rastislav. Cyril, with the help of Methodios, invented a Slavonic (Glagolitic [q.v.]) alphabet, which he used to translate the liturgy of John Chrysostom (q.v.) and the New Testament. Ultimately, the Moravian mission failed in the face of intensive pressure from the Frankish clergy in Moravia, and because of Cyril's premature death in Rome in 869. However, Methodios continued the work of translation, and his disciples in Bulgaria (q.v.) invented another alphabet for the Bulgars called Cyrillic (qq.v.), adapted from the Greek alphabet. Most important is the long-term effect of their work in attracting much of the Slavic world to Byzantine Christianity, and, thus, to Byzantine culture and civilization.
Historical Dictionary of Byzantium . John H. Rosser .