The Nordic Migration Period

During the Migration Period (in Swedish history yr 400, 550)  a first confrontation between "Germanentum" (Germanic essence and Germanic culture) and the Catholic Church occured. Sweden and the rest of Europe played a major active role. Goths originated from Sweden. Burgundians, another exodus strain probably came from Bornholm (Borgtuidarhoiro) Sweden. Heruls are said to have been of Nordic origin.

"People from the Nordic countries were  active in the major European happenings" 

says Mårten Stenberger about the Nordic Migration Period. Archaeologists have found that the buildings on Öland and Gotland were abandoned during the Migration Period. This reinforces the information in ancient literature about people who migrated from Scandinavia to the continent.

In "History Langobardorum" from 700's Paul Diaconus writes that various Germanic tribes originated from the North:

"The more the northern region is distant from the sun's heat, and the colder it is with snow the healthier it is for the bodies of human beings, the more engaging it for population growth; and conversely, the more the entire southern area is in the sun glow, the more often disease  occur, and the less it seem suitable for human development. It happens, that a large amount of people have been born in the Nordic countries. As the country produces so many people, it is hardly in a position to feed them, many tribes migrated and admittedly also haunted the Asian regions, albeit largely the adjoining parts of Europe. They destroy cities everywhere throughout, Illyria and Gaul are proof of this, but especially in the unfortunate Italy, which experienced almost all of these tribes and their wildness. Goths and Vandals, Ruger, Heruli and turcilinger and other cruel and barbaric people have advanced from Germania. Similarly, lead also Vinnilians, that the Lombards, a people who then ruled successfully in Italy, originates from the Germanic peoples. Even other reasons for their emigration can be asserted. These people have come from the land called Scandinavia. "

Lets move forward to Hedeby.

Hedeby was located where the German city of Schleswig is, it appears to have been part of the Swedish strategy at different times from the end of the 800s and the end of the 900s. The Swedes had in the second half of the 800s consolidated its position in Russia and wanted to improve the system by also having a beachhead on the continent to the west.

A Swedish dynasty had settled around 900 in Hedeby. It is known from rune stones and from continental and Scandinavian sources. This Swedish stronghold was conquered and Christianized by the Germans in 934.

Birger Nerman writes:
                  
"935 the Swedes were displaced".

Eric the Victorius praying to Odin before the Battle of Fýrisvellir

Once again at the end of the 900s Swedes conquered Hedeby, and now all of Denmark as well. It was under Erik the Victorious. Adam of Bremen said Erik ruled Denmark until his death around 995. Runestones  testify that Sven besieged Hedeby.

The Nordic empire in England

During 900-1000 centuries the Nordic region continued to assert itself as a major power in European politics. Denmark had long been in control of England, and Sweden controlled the developments in the Russian region. The Danish dominion over England reached a climax in the 980s, when several Viking fleets steered towards England. Nordic Vikings raided Southampton  980 and in the 980s they swarmed the islands with Viking fleets that ashore around the coasts of Ireland, Scotland, Bretland (Wales) and England. 991 the Vikings appear in large, well-organized armies writes Johannes Steenstrup. They roam the country in different directions and through the men’s movements, weapon and management skills they understand to crush or avoid the armies who were sent their way.

Outer Manor-stones (Yttergårds-stenarna) in Uppland were carved around 1020 and tell about the lively participation of Swedes that led to Britain becoming subjected under nordic rule. More Outer Manor-stones can be seen here: http://samla.raa.se/xmlui/bitstream/handle/raa/562/1909_057.pdf?sequence=