[Theoden]

Leif Eriksen was Norwegian not Swedish. Actually, the Swedes were operating almost exclusively in Russia and Byzantium, while the other vikings went to North America. I think it may just be coincidental that they did the same types of things with their teeth.

[CondorFlight]

This is what happens when you try and brush with your swords. . .

[Eric in the Ozarks]

I thought it was the Swedes who gave us the occasional blond Irishman...

[Pete from Shawnee Mission]

Western and Southwestern Sweden were an area of Sweden that sometimes fell under the control of Denmark or Norway. If from the Goteborg area they would probably have done their "Viking" in the North Atlantic.

See:

http://www.algonet.se/~hogman/slkrig_eng.htm

The modern boundaries were essentially established after the treaty of Roskild in 1648.