Some of the earliest Slavonic manuscripts, however, use a very different script, known as Glagolitic, and it is this script that many scholars believe Cyril invented.
Mõningates varasemates slaavi käsikirjades kasutatakse aga hoopis teistsugust kirja, mida tuntakse glagoolitsa nime all, ning paljude õpetlaste meelest on just see kiri Kyrillose loodud.