Page "Saints Cyril and Methodius" Paragraph 16

Nor is it known for sure which liturgy, that of Rome or that of Constantinople, they took as a source.

They may well have used the Roman alphabet, as suggested by liturgical fragments which adhere closely to the Latin type.

This view is confirmed by the " Prague Fragments " and by certain Old Glagolitic liturgical fragments brought from Jerusalem to Kiev and there discovered by Saresnewsky — probably the oldest document for the Slavonic tongue ; these adhere closely to the Latin type, as is shown by the words " Mass ," " Preface ," and the name of one Felicitas.

In any case, the circumstances were such that the brothers could hope for no permanent success without obtaining the authorization of Rome.