Tough competition
Look: Viking artifacts reveal how they rose to power
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Vikings were skilled seafarers who traded with other civilizations in Europe and the Middle East.
The Museum of Southwest Jutland
Writing in the journal Nature on December 22, researchers laid out the timeline leading up to the Viking Age.
They use ultra-precise radiocarbon dating to analyze artifacts found at Ribe.
In years when Earth is battered by extreme solar flares, trees soak up more atmospheric carbon into their trunks.
Researchers can use tree rings dating back to the days of Vikings as a benchmark to determine the age of artifacts from the era.
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The method has also used to pinpoint the exact age of the Vikings’ only settlement in North America, L’Anse aux Meadows.