The wiki has a number of known languages. See TranslatingPages for some background.

Here’s what to do if you want to translate a page such as our SandBox:

  1. Visit SandBox
  2. Scroll to the bottom and click the Add Translation link
  3. Pick a language such as Deutsch (only languages without existing translation links are offered…)
  4. Choose the name of the translated page name, eg. SandKasten
  5. Click the Go! button
  6. This will add the translation link [[de:SandKasten]] to the SandBox page, telling the wiki that SandKasten is a translation of SandBox
  7. You will end up editing the SandKasten page