The Glagolitic alphabet, also known as Glagolitsa, is the oldest known Slavic alphabet, from the 9th century.
The name was not coined until many centuries after its creation, and comes from the Old Church Slavonic glagolъ “utterance” (also the origin of the Slavic name for the letter G). The verb glagoliti means “to speak”. It has been conjectured that the name glagolitsa developed in Croatia around the 14th century and was derived from the word glagolity, applied to adherents of the liturgy in Slavonic.
The creation of the characters is popularly attributed to Saints Cyril and Methodius, who may have created them in order to facilitate the introduction of Christianity. It is believed that the original letters have been fitted to the original Macedonian Slavic, a dialect of Old Bulgarian.