Medieval Bulgarian literature
With the Bulgarian Empire welcoming the disciples of Cyril and Methodius after they were expelled from Great Moravia, the country became a centre of rich literary activity during what is known as the Golden Age of medieval Bulgarian culture. In the late 9th, the 10th and early 11th century literature in Bulgaria prospered, with many books being translated from Byzantine Greek, but also new works being created. Many scholars worked in the Preslav and Ohrid Literary Schools, creating the Cyrillic script for their needs. Bulgarian scholars and works influenced most of the Slavic world, spreading Old Church Slavonic, the Cyrillic and the Glagolithic alphabet to Kievan Rus', medieval Serbia and medieval Croatia.
As the Bulgarian Empire was subjugated by the Byzantines in 1018, Bulgarian literary activity declined. However, after the establishment of the Second Bulgarian Empire followed another period of upsurge during the time of Patriarch Evtimiy in the 14th century. Evtimiy founded the Tarnovo Literary School that had a significant impact on the literature of Serbia and Muscovite Russia, as many writers fled abroad after the Ottoman conquest.
- Иван Г. Илиев. Епитетът в славянобългарската агиография от 14-15 век. Пловдив. 2012. 
- Anonymous Bulgarian Chronicle
↑ "Старобългарска литература",Донка Петканова Илиев, И. Епитетът в славянобългарската агиография от 14-15 век. Пловдив. Пигмалион. 2005 Епитетът в славянобългарската агиография от 14-15 век