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
Manichaean alphabet Manichaean alphabet Manichaean script is an abjad-based writing system rooted in the Semitic family of alphabets and associated with the spread of Manichaean religion from southwest to central Asia and beyond, beginning in the 3rd century CE. It bears a sibling relationship to early forms of the Pahlavi script, both systems having developed from the Imperial Aramaic alphabet, in which the Achaemenid court rendered its particular, official dialect of the Aramaic language. Unlike Pahlavi, Manichaean script reveals influences from Sogdian script, which in turn descends from the Syriac branch of Aramaic. Manichaean script is so named because Manichaean texts attribute