Title: Slavi︠a︡nskii︠a︡t prevod na poslanieto na patriarkh Fotiĭ do Kni︠a︡z Boris-Mikhail
Subjects: Correspondence, Bishops, Greek literature, Translations into Church Slavic, History and criticism, Early Christian literature, Church Slavic language, History, Orthodox Eastern Church, Translations
Places: Byzantine Empire
People: Photius I Saint, Patriarch of Constantinople (approximately 820-approximately 891), Boris I Khan of Bulgaria (-907)