Viken (region)

[1] During the Viking Age, Viken was defined as the strait running between Norway and the northwest coast of Sweden and the Jutland peninsula of Denmark.

Viken was also controversially chosen as a neologistic name for the administrative region consisting of a merger of the counties of Akershus, Buskerud, and Østfold.

[4][failed verification] During the Civil war era in Norway, the Bagler faction frequently established themselves in the Viken area.

[5][failed verification] Viken is derived from the Old Norse word vík, meaning an inlet or creek (UK).

According to this theory, originally the word "viking" simply described persons from this area, and that it is only in the last few centuries that it has taken on the broader sense of early medieval Scandinavians in general.