In medieval texts, that is, in the texts that predate the 16th century, when the Romanian language began to be more frequently used in cultural works and in official documents, the terms usually employed to designate the Romanians and their language were derived from the ethnonym "Wallachian." In other words, in both narrative and documentary medieval sources the Romanians were referred to as Wallachians (blachi, blaci, blachos, valachi, volochi, wlochi, Walachen, olachi, ulah, ilac, iflac
, etc.), regardless of whether we are dealing with the language of religion, of culture, or of the official documents (Latin, Slavonic, Greek), with Oriental languages or with the European vernacular languages which became written languages earlier than Romanian (Italian, German, French, Spanish, etc.).