More than 200 years ago, scholars glued the remains of an ancient papyrus scroll onto cardboard to preserve it. But the scroll, a history of Plato's Academy, also had writing on the back. Now scholars have deployed imaging technology to read what's been concealed.
This scroll came from a library in Herculaneum, near Mount Vesuvius. And it was caught in the famous eruption of that volcano nearly 2,000 years ago — the same eruption that buried the city of Pompeii.
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