The Viking era marks the termination of the prehistoric period in Norway.  In synthesis it is revealed that the Viking age must have been the richest prehistoric period in the north.  Everybody says that the Viking age was a cruel time but the Vikings came on peaceful errand,  to trade and colonize.  The Vikings settled in the Orkney Isles of Man, Scotland, the Shetlands, the Hebrides, and Ireland.  Also in Iceland and Greenland the Norwegian Vikings found uninhabited land and also settled there and built communities.  Present day Iceland is a direct consequence of Viking colonization.