Old Bulgarian language

Old Bulgarian, also known as Old Church Slavonic, is the earliest Slavic literary language developed in the 9th century by Saints Cyril and Methodius. It served as the liturgical and cultural foundation for many Slavic peoples. The language is characterized by a rich, expressive alphabet based on the Glagolitic and early Cyrillic scripts. It helped unify diverse Slavic tribes through religious texts and preserved many linguistic features that influenced modern Bulgarian and other Slavic languages. While no longer spoken in everyday life, Old Bulgarian remains a vital part of Slavic history and linguistic heritage.