Canada

Vikings beat Columbus across the Atlantic by 470 years. Astrophysics and tree rings helped scientists nail down the timeline; Erin Schumaker; Business Insider

Photo: Gail Shotlander

Thanks to tree-ring dating and astrophysics, scientists have pinpointed the precise year the Vikings inhabited Newfoundland.

Source: Vikings beat Columbus across the Atlantic by 470 years. Astrophysics and tree rings helped scientists nail down the timeline.

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