Half a millennium before Christopher Columbus crossed the Atlantic, the Vikings reached the “New World”, as the remains of timber buildings at L’Anse aux Meadows on the northern tip of Canada’s Newfoundland testify.

Now scientists using a new type of dating technique and taking a long-ago solar storm as their reference point have established that the settlement was occupied in AD1021 – all by examining tree rings.

https://www.theguardian.com/science/2021/oct/20/vikings-settled-north-america-1000-years-ago-solar-storm


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