The first step to using any of Drupal’s multilingual features is installing a translation, so that Drupal has more than one language to choose from. As mentioned previously, you can use a localized distribution so that you install your language during the site installation process. Alternatively, you can easily add a language after you have installed the site by using the “Localization update” module. In this lesson we'll get the right pieces in place and get two different languages installed on the site.
Check your version
This video covers a topic in Drupal 7 which may or may not be the version you're using. We're keeping this tutorial online as a courtesy to users of Drupal 7, but we consider it archived.