The Freising manuscripts are the first Latin-script continuous text in a Slavic language and the oldest document in Slovene.
The beginning of the second Freising manuscript
The Slavic languages, also known as the Slavonic languages, are Indo-European languages spoken primarily by the Slavic peoples and their descendants. They are thought to descend from a proto-language called Proto-Slavic, spoken during the Early Middle Ages, which in turn is thought to have descended from the earlier Proto-Balto-Slavic language, linking the Slavic languages to the Baltic languages in a Balto-Slavic group within the Indo-European family.
Baška tablet, 11th century, Krk, Croatia.
14th-century Novgorodian children were literate enough to send each other letters written on birch bark.
10th–11th century Codex Zographensis, canonical monument of Old Church Slavonic (written in Glagolitic script)
West Slavic dialect continuum with major dialect groups