Ragnar’s son Ubbe reached North America by the time Vikings concluded, playing on historical evidence that the Nordic warriors were the first to make contact with the continent, arriving centuries before Christopher Columbus. However, the truth of the Vikings reaching “The Golden Land” is a little more complex than the show depicted, especially when it comes to Ubbe. As the History Channel show drew to a close, Ragnar Lothbrok’s second-eldest son became the first Viking to reach North America, landing on the shores of Newfoundland after a detour to Greenland and a harrowing journey across the sea.
https://screenrant.com/vikings-true-story-real-ubbe-discover-north-america/