Metallic ink found in scrolls buried since 79 AD
Scientists have recently understood that metallic ink was used to inscribe Herculaneum papyri, a library of over 1,800 partially burnt scrolls that survived the Mount Vesuvius eruption in 79 AD. The discovery revealed that the invention of metallic ink can be pushed back several centuries and it also offers an opportunity to study the ink-and-paper technologies of the Roman Empire.