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
Old Hungarian alphabet Old Hungarian alphabet The Old Hungarian script (, "Rovas script", "Rovash script") is an alphabetic writing system used for writing the Hungarian language. Today Hungarian is predominantly written using the Latin-based Hungarian alphabet, but the Old Hungarian script is still in use in some communities. The term "old" refers to the historical priority of the script compared with the Latin-based one. The Old Hungarian script is a child system of the Old Turkic alphabet. The Hungarians settled the Carpathian Basin in 895. After the establishment of the Christian Hungarian kingdom, the old writing system was partly forced out of use