Polychron Monastery was a medieval Byzantinemonastery inBithynia founded in the 5th century.[1] It is located on the slope of theAsia Minor Olympus (today'sUludağ, nearBursa,Turkey).[2]
In 851,Saint Methodius of Thessaloniki came to the monastery, later becoming its head.[3][4] After his mission to theSaracens, the same year SaintConstantine-Cyril the Philosopher also settled in the monastery. In this monastery in 855, on the basis of the developed Byzantine minuscule writing system,Cyril and Methodius created the first Slavic alphabet – theGlagolitic script.[5]
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