Also, it can mean "gulf" (Viken), trying to name Oslo, the gulf from Norway with the northern side of the city of Bohus from Sweden.
Anyway, there are a lot of things which remained unknown and unclear until today.
For example: it is supposed that Columbus wasn't the discoverer America. Many historians agree that the Vikings discovered it firstly. The Viking objects found in Vinland somehow sustain this opinion.
The Vikings were the best seamen ever known. They knew how to guide themselves after the wind, the way sea-birds flew, after the sea's waves. Vikings possessed qualities which helped them discover America in 986 A.
