SS. Cyril and Methodius National Library SS. Cyril and Methodius National Library The SS. Cyril and Methodius National Library (Национална библиотека „Свети Свети Кирил и Методий“) is the national library of Bulgaria, situated in the capital city of Sofia. Founded on 4 April 1878, the library received the status of Bulgarian National Library three years later and the Bulgarian National Revival Archive was merged into it in 1924. It is named after "SS. Cyril and Methodius"; Saints Cyril and Methodius. They are the creators of the Glagolitic alphabet. The Cyrillic alphabet is named after Cyril. The present building of the library is among the landmarks of
Saints Cyril and Methodius Saints Cyril and Methodius Saints Cyril and Methodius (826–869, 815–885; ("Kýrillos kaí Methódios"), Old Church Slavonic: Кѷриллъ и Меѳодїи) were two brothers who were Byzantine Christian theologians and Christian missionaries. Through their work they influenced the cultural development of all Slavs, for which they received the title ""Apostles to the Slavs"". They are credited with devising the Glagolitic alphabet, the first alphabet used to transcribe Old Church Slavonic. After their deaths, their pupils continued their missionary work among other Slavs. Both brothers are venerated in the Orthodox Church as saints with the title of ""equal-to-apostles"". In 1880, Pope Leo XIII