POPULAR STANDARDS ISO 639 LANGUAGE CODES
Internationally recognized codes for the representation of more than 500 languages or language families, with ISO 639
This ISO standard can be applied across many types of organization and situations. It’s invaluable for bibliographic purposes, in libraries or information management, including computerized systems, and for the representation of different language versions on Websites.
Using a code(either 2, 3 or 4 letters long), rather than the name of a language, has many benefits as some cultures may have different names for the same language, while some languages may share the same, or similar, names even though they are unrelated.