Gold coin may be key to solve Sweden's 'Pompeii'

Swedish archaeologists found a rare and valuable golden coin from ancient Rome on Monday. And they think it may explain a key part of the Sweden's history.

Archaeologists found the coin on Monday at a site on the island of Öland that's been compared to Italy's Pompeii. 

A small team of archaeologists at Kalmar County museum, in collaboration with Lund University, has been digging at the site for the past three years. The team is studying the Migration Period in Scandinavian history, from about 400 to 550 AD, centuries before the Viking Age.

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