Babel boxes (OOC) tell readers about which languages you can read and speak. it has 7 levels from 0 to 5 aside with N (native)
(from: commons:File:Babel-extension-screenshot.png)
It also categorizes users by language and level.
See : Wikipedia:Babel for more details.
The wiki code to display the above image boxes is :
{{#babel:en|fr-3}}
Another example:
{{#babel:en-5|sv|no-4|he-3|lt-2|es-1|an-0}}
| Babel user information | ||||
|---|---|---|---|---|
| ||||
| Users by language |