Minority languages of Croatia
The Istro-Romanian language is one of the smallest minority languages spoken in Croatia with fewer than 500 speakers concentrated mainly in the north-eastern part of the Istrian Peninsula. While the language is not officially recognized in the Constitution of Croatia under that name (the Constitution does reference Romanians and Vlachs), it is specifically recognized as such in the Statute of the Istrian Region and in the Statute of the Municipality of Kršan . In 2016, with funding from the Romanian government, the school in the village of Šušnjevica was fully renovated and is expected to start offering education in Istro-Romanian.
Shtokavian
Croatian has had a long tradition of Shtokavian vernacular literacy and literature. It took almost four and half centuries for Shtokavian to prevail as the dialectal basis for the Croatian standard. In other periods, Chakavian and Kajkavian dialects, as well as hybrid Chakavian–Kajkavian–Shtokavian interdialects "contended" for the Croatian national koine – but eventually lost, mainly due to historical and political reasons. By the 1650s it was fairly obvious that Shtokavian would become the dialectal basis for the Croatian standard, but this process was finally completed in the 1850s, when Neo-Shtokavian Ijekavian, based mainly on Ragusan (Dubrovnik), Dalmatian, Bosnian, and Slavonian literary heritage became the national standard language.