https://en.wikipedia.org/wiki/ISO_639-3
ISO 639-3 - Wikipedia
iso 639 3wikipedia
https://www.wikidata.org/wiki/Property:P6519
ISO 639-3 Change Request ID - Wikidata
Identifier for requested changes to ISO 639-3 language codes. Identifier is issued by the ISO 639-3 registration authority.
iso 639 3change requestid