For over two millennia, the scrolls of Herculaneum remained an enigma, their fragile, carbonized remnants offering only the faintest promise of the knowledge they might contain. Buried under volcanic ash after the catastrophic eruption of Mount Vesuvius in 79 AD, these manuscripts were first discovered in the 18th century, but their extreme fragility made any attempt to unroll them virtually impossible without causing irreversible damage. However, thanks to the synergy between artificial intelligence and cutting-edge X-ray imaging technology, researchers are finally beginning to decipher these ancient texts.
A Volcanic Challenge
The discovery of the Herculaneum scrolls in the lavish Villa of the Papyri in 1750 ignited the curiosity of scholars worldwide. The library, estimated to contain around 1,800 manuscripts, was a rare glimpse into the intellectual life of the ancient Roman elite. However, the scrolls were transformed into delicate charred relics by the intense heat of the pyroclastic flows. Any direct physical handling risked reducing them to dust.
For centuries, scientists could only gaze at the scrolls, unable to read their contents. That changed in 2023 with the launch of the Vesuvius Challenge, a competition aimed at utilizing machine learning and advanced computer vision techniques to virtually “unroll” and analyze the texts without damaging them. The goal was to detect ink traces and reconstruct the hidden words within the tightly coiled papyri.
By the end of 2023, a team of three students achieved a groundbreaking milestone, revealing about 5% of the text from one of the scrolls. Their efforts won them the grand prize of $700,000. Among them was Luke Farritor, a former intern at SpaceX, whose skills in AI and data analysis proved invaluable in decoding the ancient manuscript.
A Manuscript Begins to Speak
The scroll at the center of this breakthrough, designated PHerc. 172, is one of three housed at the Bodleian Library at the University of Oxford. In July 2024, scientists at Diamond Light Source, a UK-based synchrotron research facility, scanned the manuscript using high-intensity X-ray beams. This technique allowed researchers to create ultra-detailed images of the internal layers of the scroll without physically unwrapping it.
These X-ray images were then processed using AI algorithms designed to detect ink patterns. The software enhanced contrast between the blackened papyrus and the even darker ink, making previously unreadable text visible. According to Brent Seales, a professor of computer science at the University of Kentucky and co-founder of the Vesuvius Challenge, PHerc. 172 contains more decipherable text than any previously examined Herculaneum scroll.
Unraveling the Author’s Identity
Initial analysis suggests that the text belongs to Philodemus of Gadara, a 1st-century BCE Epicurean philosopher. Researchers identified several key words, including the Greek term διατροπή (disgust), which appears twice in the visible text columns. This linguistic evidence, combined with similarities in handwriting style to other works attributed to Philodemus, strongly supports the hypothesis of his authorship.
Another intriguing discovery is the presence of a unique symbol at the end of each line, indicating that the text followed an early form of justified alignment. This suggests that the ancient scribes employed a form of structured text formatting, a rare and valuable insight into early manuscript preparation techniques.
AI and the Chemistry of Ink
One of the study’s most unexpected revelations concerns the composition of the ink itself. Preliminary findings indicate that the ink used on PHerc. 172 contains a denser element, possibly lead. This surprising detail explains why certain parts of the text were distinguishable even before applying AI-driven enhancements. If confirmed, this would challenge long-standing assumptions about ancient writing materials, suggesting that Roman scribes may have experimented with different ink formulas.
Professor Seales noted that the visibility of the ink on this scroll was far greater than on others, making it an ideal candidate for further study. Peter Toth, curator of Greek collections at the Bodleian Library, emphasized that while this is a significant breakthrough, researchers are still in the early stages of a long and meticulous process. Differentiating the dark ink from the carbonized papyrus background remains one of the major challenges ahead.
A Promising Future for Ancient Texts
The implications of this discovery extend beyond PHerc. 172. The researchers are now focusing on the internal layers of the scroll, where they hope to uncover the title of the work. Simultaneously, the Vesuvius Challenge organizers have announced additional funding to encourage further decoding of the remaining scrolls, potentially leading to a complete reading of the manuscripts.
This technological breakthrough marks a pivotal moment in the study of ancient texts. Richard Ovenden, director of libraries at the University of Oxford, described it as an unprecedented collaboration between librarians, scientists, and historians to “make the invisible visible.”
At a time when AI is often viewed with skepticism and ethical concerns, this achievement highlights its positive impact on historical research.
“The astonishing progress we have made with imaging and AI allows us to read texts that have remained sealed for nearly 2,000 years,” said Ovenden.
The Past Meets the Future
The ability to digitally explore long-lost manuscripts is not just an academic curiosity—it represents a transformative leap in our understanding of ancient thought, literature, and philosophy. With each newly revealed word, these scrolls bring us closer to voices from the past, echoing across millennia.
As AI and imaging technology continue to advance, the dream of unlocking the entire Herculaneum library no longer seems out of reach. What other secrets lie hidden within these fragile scrolls, waiting for modern science to bring them back to life? The answer, it seems, is just a matter of time.
