Anglo-Saxons in England.
Their definition was the norse people from scandinavia that sailed across sea to pillage and raid.
They were only vikings when they were on raid, but when they got home they were just plain norse farmers.
Note: Vikings were merely pirates, alternately peasants and pirates, deriving the name of viking from the vicks, wicks, or inlets, on the coast in which they harbored with their long ships or rowing galleys.
:viking: