Glagolitic script alphabets, Cyril decided to invent a new script, Glagolitic, which he based on the local dialect of the Slavic tribes from the Byzantine theme of Thessalonica. After the deaths of Cyril and Methodius, the Glagolitic alphabet ceased to be used in Moravia, but their students continued to propagate it in the First Bulgarian Empire, where it was subsequently also displaced by the Cyrillic alphabet. The Glagolitic alphabet was preserved only by the clergy of Croatia to write Church Slavonic until the early 19th century. The name was not created until many centuries after the script's creation, and comes from the
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