The Lechitic languages include three or possibly four languages spoken in eastern Europe, principally in Poland. (The precise classification of Slovincian is somewhat disputed). This language group is a branch of the larger West Slavic language family. The Lekhitic group includes:
Polish- (SIL Code, PQL; ISO 639-1 code, pl; ISO 639-2 code, pol)
Lekhitic also included Polabian, which was spoken up to the 17th–18th century by the Slavic population of the Elbe (Labe) River region.
The history of the Balkan Slavs was closely connected with Byzantium, in contrast to that of the Lekhitic and Sorbian subgroups of the Western Slavs, which was connected with western European culture.
An effort on the part of the Slavs to counteract the influence of the Western Christian church (which was associated with the German empire) was the motive behind the introduction of the Old Church Slavonic language into the liturgy in Great Moravia, the first Slavic national state.