From Wikipedia

Viking Raiders

Popular conceptions of the Vikings often differ from the complex picture that emerges from archaeology and written sources. A romanticized picture of Vikings as Germanic noble savages began to take root in the 18th century, and this developed and became widely propagated during the 19th-century Viking revival. The received views of the Vikings as violent brutes or intrepid adventurers owe much to the modern Viking myth which had taken shape by the early 20th century. Current popular representations are typically highly clichéd, presenting the Vikings as familiar caricatures.