Rare find: Mass grave may belong to Viking Great Army
The Viking Great Army may have finally been found. A mass grave discovered in England in the 1980s was initially thought to be associated with the Vikings, but radiocarbon dating suggested that the skeletons belonged to different time periods. A new study says that an unlikely culprit confused the radiocarbon dating: fish consumed by the Vikings. Eating fish and other marine life results in older carbon in our bones than land-based food sources, throwing off carbon dating.