Vikings in Iberia
The first incursion of the Vikings in Iberia has been characterised as 'probably the most significant episode of the whole period of Viking activity in the South'. It is mentioned in "Annales Bertiniani", and dated August 844, when a group from a plundering expedition entered the Garonne and reached Galicia. Despite storm damage, some proceeded to South-West Spain. This account is consistent with several later, but independent sources in Latin and Arabic. In particular, the late ninth- or early tenth-century "Chronicle of Alfonso III" adds that after plundering a number of coastal villages they were ultimately repulsed in the vicinity of "Farum Brecantium" (i.e. the Tower of Hercules). Ramiro I of Asturias gathered troops in Galicia and Asturia for the counter-attack. After the Asturian victory, the Vikings continued their voyage in direction of Lisbon. While some authors consider that the reliability of this chronicle is open to doubt, others consider that other local chronicles confirm the arrival of the Norsemen.
Western Norway
Historically Vikings are often introduced with the Viking attack on Lindisfarne in 793, when they really made their mark in European history. The era ends with the Battle of Stamford Bridge in 1066. Vikings' seaworthiness and wanderlust resulted in new areas being developed. Norwegian settlers moved into the North Sea westward to Iceland, the Faroe Islands, Greenland, Shetland, Orkney, Isle of Mann and the Hebrides.
Settlements were established in the southeast corner of Ireland including in Dublin, Waterford and Wexford. Norwegians settled along the northwest area of England, principally in the area of modern-day Cumbria. The Norwegian Vikings also discovered Vinland, present-day America, long before Christopher Columbus.