Nah they aren't over rated. Took over vast parts of Nothern France, then they took the British monarchy from the Anglosaxons as the Normans. Then shook up Russia. I mean, i wouldn't call them a high culture people or anything but in terms of just causing mayhem and kicking the crap out of other groups, they had an hell of an impact.

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How do you think white people took over the world?