Vikings
In England the Viking Age began dramatically on 8 June 793 when Norsemen destroyed the abbey on the island of Lindisfarne. The devastation of Northumbria's Holy Island shocked and alerted the royal courts of Europe to the Viking presence. "Never before has such an atrocity been seen," declared the Northumbrian scholar Alcuin of York. Medieval Christians in Europe were totally unprepared for the Viking incursions and could find no explanation for their arrival and the accompanying suffering they experienced at their hands save the "Wrath of God". More than any other single event, the attack on Lindisfarne demonised perception of the Vikings for the next twelve centuries. Not until the 1890s did scholars outside Scandinavia begin to seriously reassess the achievements of the Vikings, recognizing their artistry, technological skills, and seamanship.
Vikings
The majority of runic inscriptions from the Viking period are found in Sweden and date from the 11th century. The oldest stone with runic inscriptions was found in Norway and dates to the 4th century, suggesting that runic inscriptions pre-date the Viking period. Many runestones in Scandinavia record the names of participants in Viking expeditions, such as the Kjula runestone that tells of extensive warfare in Western Europe and the Turinge Runestone, which tells of a war band in Eastern Europe. Other runestones mention men who died on Viking expeditions. Among them are around 25 Ingvar runestones in the Mälardalen district of Sweden, erected to commemorate members of a disastrous expedition into present-day Russia in the early 11th century. Runestones are important sources in the study of Norse society and early medieval Scandinavia, not only of the Viking segment of the population.