Old Croatian (non-liturgical) texts are mainly written in the Cakavian literary language, some are written in the Croatian Stokavian literary language (Dubrovnik and surroundings), while Kajkavian
texts are not present until the 16th century (Kajkavian
linguistic traces are only found before this point in Old Church Slavonic-Cakavian, Cakavian, or Latin texts).
He posited that all of the South-Slavic population who spoke the Shtokavian, Kajkavian, and Chakavian dialects, regardless of religion, belonged to the Serbian nation.
As a result, the Slovenes (the RomanCatholic and Kajkavian speaking population from Carinthia, Carniola, and Styria), the Bulgarians (Bulgarian speaking population from the eastern Balkans), and the Croats (the Roman-Catholic and Kajkavian and Chakavian speaking population from Croatia, Slavonia, and Dalmatia) were excluded from the community of Srtatimirovic's religion-language-based Serbian nation and subsequently from his Slavonic-Serbian state.