For many people, the mental picture of a Viking is of a blond giant in a horned helmet leaping out of a sharp-prowed longboat to pillage and slaughter the terrified inhabitants of the nearest village or monastery. The horned helmet is a myth, but the Vikings were, in general, red-haired or blond and taller than the Anglo-Saxons (Scandinavians are still, on average, an inch or so taller than Britons) and for almost 100 years raiding the English coast was what they did.