A historic solar storm proves the Vikings arrived in the Americas before Columbus

The transcript discusses a study that confirms Vikings settled in Canada by AD 1021, using evidence from a solar storm and tree ring analysis. The study reanalyzed wood cut with Viking tools, showing Vikings arrived in the Americas 471 years before Columbus. The Vikings likely explored westward for resources, notably wood.

How many years before Christopher Columbus did the Vikings arrive in the Americas?

What materials did the Vikings likely travel west to gather?