The first written mention of Karelia and Karelians occurs in Scandinavian sources. Several old Scandinavian sagas and chronicles refer to Karelia, sometimes as Karjalabotn, Kirjalabotnar or Kirjaland, which means that Karelians and Karelia were known to the Vikings as early as the 7th century. Another mention of Karelians in Scandinavian sources is "The Chronicle of Erik". Part of the Chronicle mentions a Karelian raid to the then notable Swedish town of Sigtuna in 1187 and its subsequent pillage. This mention of Karelian raids on Sweden in the chronicle is given as the main reason to found Stockholm, the current capital of Sweden.