Belarusian language
East Slavic language
Belarusian is an East Slavic language. It is one of the two official languages in Belarus, the other being Russian. It is also spoken in parts of Russia, Lithuania, Latvia, Poland (where it is the official language in 5 bilingual municipalities), Ukraine, and the United States by the Belarusian diaspora.
Before Belarus gained independence in 1991, the language was known in English as Byelorussian or Belorussian, or alternatively as White Russian. Following independence, it became known as Belarusian, or alternatively as Belarusan.
As one of the East Slavic languages, Belarusian shares many grammatical and lexical features with other members of the group. To some extent, Russian, Ukrainian, and Belarusian retain a degree of mutual intelligibility. Belarusian descends from a language generally referred to as Ruthenian (13th to 18th centuries), which had, in turn, descended from what is referred to as Old East Slavic (10th to 13th centuries).
In the first Belarusian census in 1999, the Belarusian language was declared a "language spoken at home" by about 3,686,000 Belarusian citizens (36.7% of the population). About 6,984,000 (85.6%) of Belarusians declared it their "mother tongue".
This brief starts where responsible research should: with the source description of “Belarusian language” as east Slavic language. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as east Slavic language. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 20, 2026. The linked authority identifier is Q9091. The Library of Congress control number is sh85018438. Authority coordinates are 53.000, 27.000. None of the 2 selected statements returned an explicit reference. The first chronological checks are 1991 and 1999.
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This entry incorporates text from “Belarusian language” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.