Cyrillic script consonants from the older Glagolitic alphabet for sounds not found in Greek. Tradition holds that Cyrillic and Glagolitic were formalized either by Saints Cyril and Methodius who brought Christianity to the southern Slavs, or by their disciples. Paul Cubberley posits that although Cyril may have codified and expanded Glagolitic, it was his students in the First Bulgarian Empire under Tsar Simeon the Great that developed Cyrillic from the Greek letters in the 890s as a more suitable script for church books. Later Cyrillic spread among other Slavic peoples, as well as among non-Slavic Vlachs. Cyrillic and Glagolitic were used for
Elbasan alphabet Its 59 pages contain Biblical content written in an alphabet of 40 letters, of which 35 frequently recur and 5 are rare. The name "Papa Totasi" (father Totasi) is written on the cover's verso, thus sometimes the script is attributed to him. The Elbasan alphabet (U+10500–U+1052F) was added to the Unicode Standard in June 2014 with the release of version 7.0. The Elbasan Gospel Manuscript comes from the Orthodox Christian monastery of St. Jovan Vladimir's Church in the village of Shijon, west of Elbasan. With the exception of a short 15th century Easter Gospel transcript, it was the oldest work