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is it Finland then you must know about Vikings no?

Actually, there were Finnish individual Vikings, but no significant Viking groups, because they couldn't organize themselves at a large enough scale. They would run when the Vikings attacked and the coast is marshy with very few rivers for boats to get inland, so in the end, the Vikings traded with Finns instead of trying to take land. :D

thanks for telling me I'm no big fan of biking but was interested to know more