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
Glagolitic script If they were added by Cyril, it is likely that they were taken from an alphabet used for Christian scripture. It is frequently proposed that the letters "sha" , "tsi" , and "cherv" were taken from the letters "shin" ש and "tsadi" צ of the Hebrew alphabet, and that Ⰶ "zhivete" derives from Coptic "janja" Ϫ. However, Cubberley (1996) suggests that if a single prototype were presumed, the most likely source would be Armenian. Other proposals include the Samaritan alphabet, which Cyril learned during his journey to the Khazars in Cherson. Glagolitic letters were also used as numbers, similarly to