Although the statements claiming that "most Vikings were Danish" are not wrong in any sense due to what modern archæologists and historians have been able to deduce, they are somewhat simple-minded: You have to remember, if you were a Viking, the Anglo-Saxons called you a "Dane" more often than not, irrespective of whether you came from Norway, Sweden, Denmark, (etc.), and it is from the somewhat biased and/or confused chronicles and writings of the Anglo-Saxons that historians relied upon for so long to piece together the history of the early-Mediæval Period, either adopting the Anglo-Saxon use of "Dane" or generalizing to "Scandinavian."