Authorship of this script is traditionaly attributed to Naum, one of the Methodius scholars, which died in Bulgaria in 910. Script is originated from tradition of Svätopluk´s kingdom, still alive in that time. It is a distinct defence of ancient Slovak literature.

(text of tractate was preserved in several transcripts from 14th to 17th centuries, most known is transcript from Chilandar - from bulgarian text book from 16th century)

Confessional Regulation of ancient Slovak´s is original work written in Slovakian territory. It is preserved on scroll in library of egyptian monastery of saint Catherine in Sinai.

Assemani Gospel, one of transcripts from Constantine transcription of gospels parts, it is written on scroll in second half of 10th century, ancient Slovakian alphabet was used. It is stored in Vatikan apostolic library.