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
Vithkuqi alphabet of the 18th century. These scripts similarly failed to see prolonged widespread usage. Vithkuqi alphabet Vithkuqi script, also called Büthakukye or Beitha Kukju after the appellation applied to it by German Albanologist Johann Georg von Hahn, was an alphabet invented for writing the Albanian language between 1825 and 1845 by Albanian scholar Naum Veqilharxhi. Though the script is sometimes erroneously claimed to be named after its inventor, as in Carl Faulmann's "Das Buch der Schrift", the alphabet's name is derived from Vithkuq, a village in the Korçë region where Veqilharxhi was born. Vithkuqi script was specifically designed to be as