To protect linguistic uniqueness and thereby preserve the identity of the nation. Such goals are set today at round tables and conferences dedicated to the International Mother Language Day. To save linguistic diversity, linguists and historians are constantly working on creating new dictionaries. For 60 years, employees of the Academy of Sciences have been putting together the Historical Dictionary of the Belarusian Language. This is the only publication containing 75 thousand words of the Old Belarusian literary language. Also noteworthy is the publication of the first ever French-Belarusian dictionary of legal terms, as well as books on the nuances of the translation of religious literature.