All of them were affected by the Protestant revolution, the Teutonic peoples permanently, the others transiently.
Scandinavia looms large in the Middle Ages as the home of the teeming multitudes of emigrants, Goths and Vandals, who swarmed over the Roman Empire.

Later waves from Denmark and the contiguous portion of Germany flooded England first in the Anglo-Saxon conquest and then in the Danish.

The Normans, too, originally hailed from Scandinavia.

But though the sons of the North conquered and colonized so much of the South, Scandinavia herself remained a small people, neither politically nor intellectually of the first importance.

The three kingdoms of Denmark, Norway, and Sweden became one in 1397; and, after Sweden's temporary separation from the other two, were again united.