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.
Rajko Igić
He also devised a new script, Slavica, a fused version of the (Cyrillic and Latin alphabet), used by speakers of the predominant southern Slavic languages (Serbo-Croatian). It was a quixotic attempt to mend the linguistic divisions among the Yugoslav ethnic groups, prior to outbreak of widespread [Balkan Wars | conflict].