language Code for Identifying Languages 2008-02-22 Provides codes for identifying all known languages, both living and extinct, from the ISO 639 family of international standards (Parts 1, 2, and 3). It is used with Language to indicate a language the resource is written or spoken in. It is used with Subject to indicate a language the resource is about. dc:language dc:subject http://www.language-archives.org/REC/language.html