South Slavic languages

The South Slavic languages are one of three branches of the Slavic languages. There are approximately 30 million speakers, mainly in the Balkans. These are separated geographically from speakers of the other two Slavic branches (West and East) by a belt of Austrian German, Hungarian and Romanian speakers.

The first South Slavic language to be written (also the first attested Slavic language) was the variety of the Eastern South Slavic spoken in Thessaloniki, now called Old Church Slavonic, in the ninth century. It is retained as a liturgical language in Slavic Orthodox churches in the form of various local Church Slavonic traditions.^{[citation needed]}

The Slavic languages are part of the Balto-Slavic group, which belongs to the Indo-European language family. The South Slavic languages have been considered a genetic node in Slavic studies: defined by a set of phonological, morphological and lexical innovations (isoglosses) which separate it from the Western and Eastern Slavic groups. That view, however, has been challenged in recent decades (see below).

Some innovations encompassing all South Slavic languages are shared with the Eastern Slavic group, but not the Western Slavic. These include:

This is illustrated in the following table:

Several isoglosses have been identified which are thought to represent exclusive common innovations in the South Slavic language group. They are prevalently phonological in character, whereas morphological and syntactical isoglosses are much fewer in number. Sussex & Cubberly (2006:43–44) list the following phonological isoglosses:

Most of these are not exclusive in character, however, and are shared with some languages of the Eastern and Western Slavic language groups (in particular, Central Slovakian dialects). On that basis, Matasović (2008) argues that South Slavic exists strictly as a geographical grouping, not forming a true genetic clade; in other words, there was never a proto-South Slavic language or a period in which all South Slavic dialects exhibited an exclusive set of extensive phonological, morphological or lexical changes (isoglosses) peculiar to them. Furthermore, Matasović argues, there was never a period of cultural or political unity in which Proto-South-Slavic could have existed during which Common South Slavic innovations could have occurred. Several South-Slavic-only lexical and morphological patterns which have been proposed have been postulated to represent common Slavic archaisms, or are shared with some Slovakian or Ukrainian dialects.^{[citation needed]}

The South Slavic dialects form a dialectal continuum stretching from today's southern Austria to southeast Bulgaria. On the level of dialectology, they are divided into Western South Slavic (Slovene and Serbo-Croatian dialects) and Eastern South Slavic (Bulgarian and Macedonian dialects); these represent separate migrations into the Balkans and were once separated by intervening Hungarian, Romanian, and Albanian populations; as these populations were assimilated, Eastern and Western South Slavic fused with Torlakian as a transitional dialect.^{[citation needed]} On the other hand, the breakup of the Ottoman and Austro-Hungarian Empires, followed by formation of nation-states in the 19th and 20th centuries, led to the development and codification of standard languages. Standard Slovene, Bulgarian, and Macedonian are based on distinct dialects. The Bosnian, Croatian, Montenegrin, and Serbian standard variants of the pluricentric Serbo-Croatian are based on the same dialect (Shtokavian). Thus, in most cases national and ethnic borders do not coincide with dialectal boundaries.