Slavs
Standardised Slavic languages that have official status in at least one country are: Belarusian, Bosnian, Bulgarian, Croatian, Czech, Macedonian, Montenegrin, Polish, Russian, Serbian, Slovak, Slovene, and Ukrainian.
Vlachs in the history of Croatia
Many scholars consider that the "Vlachs" since the 16th century referred to pastoralists (social status) being a common name for Serbs and other Slavs in the Ottoman Empire and later. Tihomir Đorđević considered that the Vlach didn't only refer to genuine Vlachs or Serbs but also to cattle breeders in general. Bogumil Hrabak emphasized that not all cattle breeders and shepherds in the Balkans were called Vlachs, an example being the Arbanasi. Another view, as held by Croatian-Albanian Zef Mirdita, is that there was a clear distinction between the Serb ethnic community and the Vlachs as seen in Serbian medieval documents mentioning "Vlachs" separately from "Serbs", and for example the prohibition of intermarriage between Serbs and Vlachs by Emperor Stefan Dušan (in "Dušan's Code"). However, as noted by John V. A. Fine Jr., "a more detailed examination of the code shows that it was in fact occupational". Mirdita and other scholars noted that the Vlachs were always mentioned as an ethnic group, and were in the process of Slavicization which wasn't completed in the 15th century.