Attribution for language-codes

Contains information from the Unicode Common Locale Data Repository (CLDR) (https://cldr.unicode.org/), licensed under the Unicode License v3 (https://www.unicode.org/license.txt).

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Contains information from the ISO 639-2 code list published by the Library of Congress, the ISO 639-2 Registration Authority (https://www.loc.gov/standards/iso639-2/iso639-2ra.html). Licence: unclear (none stated by the source).

Changes made to the source data: language-codes-full.csv is the ISO 639-2 list split on its field separator into columns, with the names unchanged. language-codes.csv keeps only the languages that have a two-letter code, sorted by that code. language-codes-3b2.csv keeps only the languages that have both a bibliographic three-letter code and a two-letter code. ietf-language-tags.csv has one row for each CLDR locale file: tag, language, territory, generation date, number of definitions, default-language flag and file name. No CLDR names or translations are copied.

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