Norse colonization of North America in the context of "Atlantic Ocean"

Vikings were a seafaring people originally from Scandinavia (present-day Denmark, Norway, and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded, and settled throughout parts of Europe. They voyaged as far as the Mediterranean, North Africa, the Middle East, Greenland, and Vinland (present-day Newfoundland in Canada, North America). In their countries of origin, and in some of the countries they raided and settled, this period of activity is popularly known as the Viking Age, and the term "Viking" also commonly includes the inhabitants of the Scandinavian homelands as a whole during the late 8th to the mid-11th centuries. The Vikings had a profound impact on the early medieval history of northern and Eastern Europe, including the political and social development of England (and the English language) and parts of France, and established the embryo of Russia in Kievan Rus'.

Expert sailors and navigators of their characteristic longships, Vikings established Norse settlements and governments in the British Isles, the Faroe Islands, Iceland, Greenland, Normandy, and the Baltic coast, as well as along the Dnieper and Volga trade routes across Eastern Europe where they were also known as Varangians. The Normans, Norse-Gaels, Rus, Faroese, and Icelanders emerged from these Norse colonies. At one point, a group of Rus Vikings went so far south that, after briefly being bodyguards for the Byzantine emperor, they attacked the Byzantine city of Constantinople. Vikings also voyaged to the Caspian Sea and Arabia. They were the first Europeans to reach North America, briefly settling in Newfoundland (Vinland). While spreading Norse culture to foreign lands, they simultaneously brought home slaves, concubines, and foreign cultural influences to Scandinavia, influencing the genetic and historical development of both. During the Viking Age, the Norse homelands were gradually consolidated from smaller kingdoms into three larger kingdoms: Denmark, Norway, and Sweden.

The Viking Age (about 793–1066 CE) was the period during the Middle Ages when Norsemen known as Vikings undertook large-scale raiding, colonising, conquest, and trading throughout Europe and reached North America. The Viking Age applies not only to their homeland of Scandinavia but also to any place significantly settled by Scandinavians during the period. Although few of the Scandinavians of the Viking Age were Vikings in the sense of being engaged in piracy, they are often referred to as Vikings as well as Norsemen.

Voyaging by sea from their homelands in Denmark, Norway, and Sweden, the Norse people settled in the British Isles, Ireland, the Faroe Islands, Iceland, Greenland, Normandy, and the Baltic coast and along the Dnieper and Volga trade routes in eastern Europe, where they were also known as Varangians. They also briefly settled in Newfoundland, becoming the first Europeans to reach North America. The Norse-Gaels, Normans, Rus' people, Faroese, and Icelanders emerged from these Norse colonies. The Vikings founded several kingdoms and earldoms in Europe: the Kingdom of the Isles (Suðreyjar), Orkney (Norðreyjar), York (Jórvík) and the Danelaw (Danalǫg), Dublin (Dyflin), Normandy, and Kievan Rus' (Garðaríki). The Norse homelands were also unified into larger kingdoms during the Viking Age, and the short-lived North Sea Empire included large swathes of Scandinavia and Britain. In 1021, the Vikings achieved the feat of reaching North America—the date of which was not determined until a millennium later.

Vinland, Vineland, or Winland (Old Norse: Vínland hit góða, lit. 'Vinland the Good') was an area of coastal North America explored by Vikings. Leif Erikson landed there around 1000 AD, nearly five centuries before the voyages of Christopher Columbus and John Cabot. The name appears in the Vinland Sagas and describes a land beyond Greenland, Helluland, and Markland. Much of the geographical content of the sagas corresponds to present-day knowledge of transatlantic travel and North America.

In 1960, archaeological evidence of the only known Norse site in North America, L'Anse aux Meadows, was found on the northern tip of the island of Newfoundland. Before the discovery of archaeological evidence, Vinland was known only from the sagas and medieval historiography. The 1960 discovery further proved the pre-Columbian Norse exploration of mainland North America. Archaeologists found butternuts at L'Anse aux Meadows, which indicates voyages into the Gulf of Saint Lawrence as far as northeastern New Brunswick. L'Anse aux Meadows has been hypothesized to be the camp Straumfjörð mentioned in the Saga of Erik the Red.

L'Anse aux Meadows is an archaeological site, first excavated in the 1960s, of a Norse settlement dating to approximately 1,000 years ago. The site is located near St. Anthony on the northernmost tip of the island of Newfoundland in the Canadian province of Newfoundland and Labrador.

With carbon dating estimates between 990 and 1050 CE (mean date 1014) and tree-ring dating of 1021, L'Anse aux Meadows is the only undisputed site of pre-Columbian trans-oceanic contact of Europeans with the Americas outside of Greenland. It is notable as evidence of the Norse presence in North America and for its possible connection with the accounts of Leif Erikson in the Saga of the Greenlanders and the Saga of Erik the Red, which were written down in the 13th century. Archaeological evidence suggests the settlement served as a base camp for Norse exploration of North America, including regions to the south.