starýchslavanský
Staroslověnština, often referred to as staro-slavonic or Old Church Slavonic (OCS), is the first literary Slavic language. It was created in the 9th century by the Byzantine missionaries Saints Cyril and Methodius. Their primary goal was to translate religious texts into a language that could be understood by the Slavic peoples of the Great Moravian Empire. To achieve this, they developed the Glagolitic alphabet, which was then later simplified into the Cyrillic alphabet.
The language itself was based on the dialect spoken by Slavic tribes in the vicinity of Thessaloniki.
Despite its artificial creation, Staroslověnština had a profound and lasting impact on the development of all