Croatia
Croatian is the official language of Croatia, and became the 24th official language of the European Union upon its accession in 2013. Minority languages are in official use in local government units where more than a third of population consists of national minorities or where local legislation defines so. Those languages are Czech, Hungarian, Italian, Ruthenian, Serbian, and Slovak.
According to the 2011 Census, 95.6% of citizens of Croatia declared Croatian as their native language, 1.2% declared Serbian as their native language, while no other language is represented in Croatia by more than 0.5% of native speakers among population of Croatia. Croatian is a member of the South Slavic languages of Slavic languages group, and is written using the Latin alphabet. There are three major dialects spoken on the territory of Croatia, with standard Croatian based on the Shtokavian dialect. The Chakavian and Kajkavian dialects are distinguished by their lexicon, phonology, and syntax.
Croatian replaced Latin as the official language of the Croatian government in the 19th century. In Yugoslavia, from 1972 to 1989, the language was constitutionally designated as "Croatian literary language". It was the result of the resistance to "Serbo-Croatian" in the form of a Declaration on the Status and Name of the Croatian Literary Language and Croatian Spring. Croatians are protective of their Croatian language from foreign influences and are known for Croatian linguistic purism, as the language was under constant change and threats imposed by previous rulers (i.e. Austrian German, Hungarian, Italian, and Turkish words were changed and altered to Slavic looking or sounding ones).
Serbo-Croatian
The opinion of the majority of Croatian linguists is that there has never been a Serbo-Croatian language, but two different standard languages that overlapped sometime in the course of history. However, Croatian linguist Snježana Kordić has been leading an academic discussion on this issue in the Croatian journal "Književna republika" from 2001 to 2010. In the discussion, she shows that linguistic criteria such as mutual intelligibility, the huge overlap in the linguistic system, and the same dialect basis of the standard language are evidence that Croatian, Serbian, Bosnian and Montenegrin are four national variants of the pluricentric Serbo-Croatian language. Igor Mandić states: "During the last ten years, it has been the longest, the most serious and most acrid discussion (…) in 21st-century Croatian culture". Inspired by that discussion, a monograph on language and nationalism has been published.