Norwegian is the principal language of Norway and a member of the Germanic family of languages. Norwegian is mutually intelligible with both Danish and Swedish, which are close relatives. Written Norwegian and Danish and are especially close, although the pronunciation of all three languages is quite different. All three languages come from Old Norse which, during its prominence, did not differ significantly within what are today the Swedish, Norwegian, and Danish territories. There are two official forms of written Norwegian: Nynorsk, or "New Norwegian" and Bokmål, or "Standard Norwegian". There is also another commonly used, unofficial form of written Norwegian known as Riksmål, or "Traditional Standard Norwegian". The majority of Norwegian speakers, around 90 percent, use Riksmål or Bokmål. About ten percent use Nynorsk, especially the rural inhabitants of Western Norway. The Norwegian language is spoken by about five million people.