These are the Balto-Slavic languages categorized by sub-groups, including number of speakers.
The Kashubians, also known as Cassubians or Kashubs, are a Lechitic ethnic group native to the historical region of Pomerania, including its eastern part called Pomerelia, in north-central Poland. Their settlement area is referred to as Kashubia. They speak the Kashubian language, which is classified as a separate language closely related to Polish.
Kashubian or Cassubian is a West Slavic language belonging to the Lechitic subgroup. Although often classified as a language in its own right, it is sometimes viewed as a dialect of Polish.
The Slavic languages, also known as the Slavonic languages, are Indo-European languages spoken primarily by the Slavic peoples and their descendants. They are thought to descend from a proto-language called Proto-Slavic, spoken during the Early Middle Ages, which in turn is thought to have descended from the earlier Proto-Balto-Slavic language, linking the Slavic languages to the Baltic languages in a Balto-Slavic group within the Indo-European family.
Old Church Slavonic or Old Slavonic is the first Slavic literary language.
The Lechiticlanguages are a language subgroup consisting of Polish and several other languages and dialects that were once spoken in the area that is now Poland and eastern Germany. It is one of the branches of the larger West Slavic subgroup; the other branches of this subgroup are the Czech–Slovak languages and the Sorbian languages.
Church Slavonic, also known as Church Slavic, New Church Slavonic, New Church Slavic or just Slavonic, is the conservative Slavic liturgical language used by the Eastern Orthodox Church in Belarus, Bulgaria, North Macedonia, Montenegro, Poland, Ukraine, Russia, Serbia, the Czech Republic and Slovakia, Slovenia and Croatia. The language appears also in the services of the Russian Orthodox Church Outside of Russia, the American Carpatho-Russian Orthodox Diocese, and occasionally in the services of the Orthodox Church in America.
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 by a belt of German, Hungarian and Romanian speakers.
The Balto-Slavic languages form a branch of the Indo-European family of languages, traditionally comprising the Baltic and Slavic languages. Baltic and Slavic languages share several linguistic traits not found in any other Indo-European branch, which points to a period of common development and origin.
Russian is an East Slavic language of the Indo-European family. All Indo-European languages are descendants of a single prehistoric language, reconstructed as Proto-Indo-European, spoken sometime in the Neolithic era. Although no written records remain, much of the culture and religion of the Proto-Indo-European people can also be reconstructed based on their daughter cultures traditionally and continuing to inhabit most of Europe and South Asia, areas to where the Proto-Indo-Europeans migrated from their original homeland.
The history of the Slavic languages stretches over 3000 years, from the point at which the ancestral Proto-Balto-Slavic language broke up into the modern-day Slavic languages which are today natively spoken in Eastern, Central and Southeastern Europe as well as parts of North Asia and Central Asia.
Proto-Balto-Slavic is a reconstructed hypothetical proto-language descending from Proto-Indo-European (PIE). From Proto-Balto-Slavic, the later Balto-Slavic languages are thought to have developed, composed of the Baltic and Slavic sub-branches, and including modern Lithuanian, Polish, Russian and Serbo-Croatian, among others.
The term North Slavic languages is used in three main senses:
Polish dialects are regional vernacular varieties of the Polish language.
The Slavic liquid metathesis refers to the phenomenon of metathesis of liquid consonants in the Common Slavic period in the South Slavic and West Slavic area. The closely related corresponding phenomenon of pleophony occurred in parallel in the East Slavic languages.
The Slavic second palatalization is a Proto-Slavic sound change that manifested as a regressive palatalization of inherited Balto-Slavic velar consonants that occurred after the first and before the third Slavic palatalizations.
Proto-Slavic is the unattested, reconstructed proto-language of all Slavic languages. It represents Slavic speech approximately from the 2nd millennium BC through the 6th century AD. As with most other proto-languages, no attested writings have been found; scholars have reconstructed the language by applying the comparative method to all the attested Slavic languages and by taking into account other Indo-European languages.
Proto-Slavic accent is the accentual system of Proto-Slavic and is closely related to the accentual system of some Baltic languages with which it shares many common innovations that occurred in the Proto-Balto-Slavic period. Deeper, it inherits from the Proto-Indo-European accent. In modern languages the prototypical accent is reflected in various ways, some preserving the Proto-Slavic situation to a greater degree than others.
The Proto-Slavic language, the hypothetical ancestor of the modern-day Slavic languages, developed from the ancestral Proto-Balto-Slavic language, which is the parent language of the Balto-Slavic languages. The first 2,000 years or so consist of the pre-Slavic era, a long period during which none of the later dialectal differences between Slavic languages had yet emerged. The last stage in which the language remained without internal differences that later characterize different Slavic languages can be dated around AD 500 and is sometimes termed Proto-Slavic proper or Early Common Slavic. Following this is the Common Slavic period, during which the first dialectal differences appeared but the entire Slavic-speaking area continued to function as a single language, with sound changes tending to spread throughout the entire area. By around 1000, the area had broken up into separate East Slavic, West Slavic and South Slavic languages, and in the following centuries it broke up further into the various modern Slavic languages of which the following are extant: Belarusian, Russian, Rusyn and Ukrainian in the East; Czech, Slovak, Polish, Kashubian and the Sorbian languages in the West, and Bulgarian, Macedonian, Serbo-Croatian and Slovenian in the South.
Topical outline of articles about Slavic history and culture. This outline is an overview of Slavic topics; for outlines related to specific Slavic groups and topics, see the links in the Other Slavic outlines section below.