Ohrid Literary School
The Ohrid Literary School was one of the two major cultural centres of the First Bulgarian Empire, along with the Preslav Literary School (Pliska Literary School). The school was established in Ohrid (nowadays Republic of Macedonia) in 886 by Saint Clement of Ohrid on the order of Boris I of Bulgaria simultaneously or shortly after the establishment of the Preslav Literary School. After Clement was ordained bishop of Drembica (Velika) in 893, the position of head of the school was assumed by Naum of Preslav. The Ohrid Literary School used the Glagolitic alphabet from its establishment until the 12th century and Cyrillic from the end of the 9th century onwards.
- Steven Runciman, A history of the First Bulgarian Empire, Appendix IX - The Cyrillic and Glagolitic alphabets, (G. Bell & Sons, London 1930)