Historians wrong about ancient Roman vase for centuries

New research shows that one the British Museum’s most famous artifacts—the Portland Vase—was manufactured by a different technique than the one traditionally assumed by historians and archaeologists. For centuries, experts in antiquities have said that the Portland Vase, along with other Roman cameo glass artifacts, were manufactured by the ancient Romans using a blown glass technique. Arguments say a cold-processing technique now known as “pate de verre” was used. The Portland Vase was crafted sometime between 30 BC to 50 AD and is probably the best known piece of Roman cameo glass in the world today.

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