Before we can translate the various site-wide variables, like the site name or slogan, we need to let Drupal know which ones we want to make translatable. To do this, we’ll need to use the Variable translation module from the Internationalization package. In this lesson we'll enable a multilingual variable so that we can see how to translate the site name.
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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.