The oldest writing which could be originating from to the Serbian speaking region, though also claimed by other Slavic nations, is the Codex Marianus. The usage of certain letters and marks for certain sounds points to the Serbian language. The codex was written sometime between 1050 and 1075, on 174 pages of parchment. It was discovered in the 19th century at the Mount Athos and sent to Saint Petersburg, Russia, where it is still kept today. Examining the language used, just like the later, and much better known Miroslav Gospel, it obviously contains older texts written in Glagolitic and, later compiled, Cyrillic script. This points to the existence of, today unknown, Slavic literacy tradition.