Comment by mzi

I had to look into this again. In Valsgärde, close to Uppsala, Sweden you have confirmed ship/boat burials from 600CE. At the same time as the ship burials at Sutton Hoo in England. The "Swedish" (at the time national borders were different) had more in common with "Denmark" that in turn had closer relations to England. Tröndelag Norway had less of international trade leading up to the Viking age, at least compared to Denmark/Jutland and the Baltic.