Scholars of antiquity believe they are on the brink of a new era of understanding after researchers armed with artificial intelligence read the hidden text of a charred scroll that was buried when Mount Vesuvius erupted nearly 2,000 years ago.

Hundreds of papyrus scrolls held in the library of a luxury Roman villa in Herculaneum were burned to a crisp when the town was devastated by the intense blast of heat, ash and pumice that destroyed nearby Pompeii in AD79.

Excavations in the 18th century recovered more than 1,000 whole or partial scrolls from the mansion, thought to be owned by Julius Caesar’s father-in-law.

However, the black ink was unreadable on the carbonised papyri and the scrolls crumbled to pieces when researchers tried to open them.

The breakthrough in reading the ancient material came from the $1m Vesuvius Challenge, a contest launched in 2023 by Brent Seales, a computer scientist at the University of Kentucky, and Silicon Valley backers.

The competition offered prizes for extracting text from high-resolution CT scans of a scroll taken at Diamond, the UK’s national synchrotron facility in Oxfordshire.

On Monday, Nat Friedman, a US tech executive and founding sponsor of the challenge, announced that a team of three computer-savvy students, Youssef Nader in Germany, Luke Farritor in the US, and Julian Schilliger in Switzerland, had won the $700,000 (£554,000) grand prize after reading more than 2,000 Greek letters from the scroll.

Papyrologists who have studied the text recovered from the blackened scroll were stunned at the feat.

“This is a complete gamechanger,” said Robert Fowler, emeritus professor of Greek at Bristol University and chair of the Herculaneum Society.

“There are hundreds of these scrolls waiting to be read.”

Dr Federica Nicolardi, a papyrologist at the University of Naples Federico II, added:

“This is the start of a revolution in Herculaneum papyrology and in Greek philosophy in general. It is the only library to come to us from ancient Roman times.”

“We are moving into a new era,” said Seales, who led efforts to read the scrolls by virtually unwrapping the CT images and training AI algorithms to detect the presence of ink.

He now wants to build a portable CT scanner to image scrolls without moving them from their collections.

In October, Farritor won the challenge’s $40,000 “first letters” prize when he identified the ancient Greek word for “purple” in the scroll.

He teamed up with Nader in November, with Schilliger, who developed an algorithm to automatically unwrap CT images, joining them days before the contest deadline on 31 December.

Together, they read more than 2,000 letters of the scroll, giving scholars their first real insight into its contents.

“It’s been an incredibly rewarding journey,” said Youssef.

“The adrenaline rush is what kept us going. It was insane. It meant working 20-something hours a day. I didn’t know when one day ended and the next day started.”

“It probably is Philodemus,” Fowler said of the author.

“The style is very gnarly, typical of him, and the subject is up his alley.”

The scroll discusses sources of pleasure, touching on music and food – capers in particular – and whether the pleasure experienced from a combination of elements owes to the major or minor constituents, the abundant or the scare.

“In the case of food, we do not right away believe things that are scarce to be absolutely more pleasant than those which are abundant,” the author writes.

“I think he’s asking the question: what is the source of pleasure in a mix of things? Is it the dominant element, is it the scarce element, or is it the mix itself?” said Fowler.

The author ends with a parting shot against his philosophical adversaries for having “nothing to say about pleasure, either in general or particular."

Seales and his research team spent years developing algorithms to digitally unwrap the scrolls and detect the presence of ink from the changes it produced in the papyrus fibres.

He released the algorithms for contestants to build on in the challenge.

Friedman’s involvement proved valuable not only for attracting financial donors.

When Seales was meant to fly to the UK to have a scroll scanned, a storm blew in cancelling all commercial flights.

Worried they might lose their slot at the Diamond light source, Friedman hastily organised a private jet for the trip.

Beyond the hundreds of Herculaneum scrolls waiting to be read, many more may be buried at the villa, adding weight to arguments for fresh excavations.

"The same technology could be applied to papyrus wrapped around Egyptian mummies," Fowler said.

These could include everything from letters and property deeds to laundry lists and tax receipts, shining light on the lives of ordinary ancient Egyptians.

“There are crates of this stuff in the back rooms of museums,” Fowler said.

The challenge continues this year with the goal to read 85% of the scroll and lay the foundations for reading all of those already excavated.

Scientists need to fully automate the process of tracing the surface of the papyrus inside each scroll and improve ink detection on the most damaged parts.

“When we launched this less than a year ago, I honestly wasn’t sure it’d work,” said Friedman.

“You know, people say money can’t buy happiness, but they have no imagination. This has been pure joy. It’s magical what happened, it couldn’t have been scripted better."

Source: The Guardian

How the Herculaneum Papyri were carbonised in the Mount Vesuvius eruption – Video

“You've heard of Pompeii, the ancient Roman city destroyed when Mt. Vesuvius erupted in A.D. 79. Less well known is the neighboring city of Herculaneum, also buried by the volcano. When the city was re-discovered in the 1700s, excavators found what could be the richest repository of ancient Western wisdom: a library filled with papyrus scrolls. Scholars think there could be unknown Greek and Latin masterpieces, possibly early Christian writings, even the first references to Jesus. The problem is, the volcanic heat left the scrolls so charred and brittle, no one has been able to open them without breaking them into pieces. We heard three scholars might finally have found a way to unravel the mystery of the scrolls. So we traveled to Italy to see what we could uncover about the scrolls of Herculaneum.”

For almost 2,000 years, the carbonized library of Herculaneum has kept a cruel bargain: its scrolls survived the eruption of Mount Vesuvius, but only by becoming too fragile to open. To read one was to destroy it. Hundreds of rolls have therefore remained sealed, their contents preserved yet unreachable.

Today that changes. We have completely virtually unwrapped and read PHerc. 1667 — the scroll the Vesuvius Challenge community knows as Scroll 4 — without ever touching its pages. It is the first Herculaneum papyrus to be digitally unrolled and read in full, end to end, and made available for sustained scholarly study.

From a sealed lump to a readable book

PHerc. 1667 began as a blackened, rolled mass of carbonized papyrus. To read it, we never unrolled it physically. Instead, we scanned it with high-resolution X-rays, reconstructed the wound sheet inside the volume, flattened it into a readable surface, and used machine learning to bring out the faint traces of ancient ink.

From object to text. The sealed, carbonized roll (top left); cross-sections through the X-ray scan revealing the spiraled sheet inside (top); and the unwrapped surface, where columns of Greek writing emerge as the ink signal is recovered (bottom).

PHerc. 1667 — read in full

PHerc. 1667 is what survives of a larger roll: earlier attempts to open it by hand — in the nineteenth century, and again in 1969 and the 1980s — destroyed its outer layers and left only the compact inner core, about 8 cm of an original height of 19–24 cm. From that surviving portion we have now recovered and read the text in full — the lower parts of some twenty-two columns, transcribed and reviewed by papyrologists. It is the first time the preserved text of a rolled Herculaneum scroll has been read continuously, end to end, rather than in isolated words or patches.

The recovered text is a philosophical treatise on ethics, and the evidence points to a Stoic work: it turns on human nature, impulse, and the moral progress of human beings, and its final preserved column names Aristocreon — nephew and disciple of the great Stoic Chrysippus — which, together with the language and themes of the text, places it in a Stoic context and dates it to the 2nd century BC.

Because the papyrus is damaged, the readings are fragmentary, with gaps where the surface is lost. Even so, several passages can be read clearly for the first time in two thousand years:

“…we will inquire into something, but we will not grasp it, if in some way we depart from ourselves and from our own nature…”

“Having…strained ourselves to the utmost through research and learning…possessing the same practical wisdom…”

“…such being the goods for us, even from the opposite evils there will be neither anything good — let alone beautiful — nor anything bad — let alone ugly — nor happiness…”

How it was done

The scans were acquired with high-resolution phase-contrast X-ray microtomography on the BM18 beamline at the European Synchrotron Radiation Facility (ESRF) in Grenoble — an instrument able to resolve the wafer-thin, densely packed layers of a Herculaneum roll. The work was carried out in collaboration with the National Library of Naples “Vittorio Emanuele III”, which safeguards the Herculaneum papyri. From those volumes, the team reconstructed the scroll's geometry, traced and flattened its surface into a readable sheet, and trained machine-learning models to detect ink that is almost indistinguishable from the carbonized papyrus beneath it. Each reading was then examined and transcribed by papyrologists.

Ancient works of literature have been lost due to being recorded on fragile paper. Even when we have the remains of scrolls they can be too damaged to read. Now, with new technology including AI, CT scanning, inferred light, to not only see the writing on fragile ancient paper but AI can predict where missing letters of words are.

These charred, ancient logs of ancient papyrus may hide some of the of most important writing of human history. Burned and carbonized in the eruption of Mount Vesuvius in AD 79, the scrolls were found under meters of ash and dirt, in what would have been a library inside an enormous villa. Over 500 scrolls were found, all of which were in charred, unreadable form. The ancient, charred scrolls…