A list of languages might look like so:
- English (en)
- French (fr)
- German (de)
What are the two-letter identifiers in brackets called?
Answer
Specifically, these are ISO 639-1 Codes (from the International Organization for Standardization).
There is also a similar system but with three letters known as the ISO 639-2.
Attribution
Source : Link , Question Author : Iamsodarncool , Answer Author : Laurel