A larger settlement was planted in Newfoundland in 1010 by the Viking leader Thorfinn Karlsefni. Nearly 150 Norsemen including families established a colony near the previous settlement at what is today known as L’Anse aux Meadows. During their three years in Newfoundland, the party faced the constant threat of attack by Skraeling warriors. So great was the danger posed by the aboriginals, Karlsefni forbid his men from trading swords or armour locals on the few occasions that a truce could be negotiated.
It seemed even the smallest provocation could touch off a battle. According to Viking accounts, one native raid was precipitated when a bull escaped from captivity in the Norse camp. Native warriors were terrified by the animal, the likes of which they had never seen, and attacked the settlement. Two Vikings were killed in the ensuing melee.
“Despite everything the land had to offer there, they would be under constant threat of attack from its prior inhabitants,” recorded one Norseman. [3] The colony was eventually abandoned. Europeans would not settle again anywhere in North American until the late 15th century.
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I did not know that Nordics had tried to set up settlements in the USA before Christopher Columbus "discovered" the USA ... apparently Leif Erickson was banned form Greenland so he sailed west.
Also read somewhere else that "skraeling" may mean "skin wearers"