The Herculaneum Papyri are speaking again.
On June 25, 2026, an international team announced the first complete, non-invasive reading of a scroll carbonized by the eruption of Vesuvius, recovering nearly five feet of previously unseen Greek text that had been beyond the reach of human eyes for almost two millennia.
The announcement was made at the Biblioteca Nazionale di Napoli, with Vesuvius visible through the windows behind the speakers.
That scroll — commonly called a parchment, though it’s technically a papyrus made from plant fiber — is PHerc. 1667, a roll held in Naples that was declared completely unreadable in the 1980s after a failed attempt to peel it open.
Technology has finally done what human hands could not.
A Global Race Against Time and Ash
The breakthrough is the result of the Vesuvius Challenge, an open competition launched in 2023 by the University of Kentucky, inviting teams from around the world to decipher the scrolls without damaging them.
The challenge offered a $1 million prize to the first team to read the complete text of a sealed scroll virtually, without causing any physical damage. According to Reuters, the project has now distributed $1.8 million in prizes for various decipherment milestones across these texts.
The method combines high-resolution computed microtomography — conducted at specialized facilities at the ESRF in France and Diamond Light Source in the United Kingdom — with artificial intelligence algorithms trained to detect microscopic traces of carbonized ink on papyrus fibers.
The resulting images are invisible to the naked eye and to conventional X-rays. Each scroll generates hundreds of terabytes of data, allowing researchers to virtually “unroll” the manuscript and extract its columns of text without ever touching it.
Brent Seales, co-founder of the Vesuvius Challenge and professor of Heritage Science at the University of Kentucky, put it plainly: “For nearly two millennia, many of these texts have been physically preserved but intellectually inaccessible. Today, after years of interdisciplinary work combining advanced imaging, artificial intelligence, academic scholarship, and an innovation competition, we can finally read them.”
What the Recovered Texts Say
Among the most significant findings is the recovery of PHerc. 1667, the Naples scroll from which researchers extracted nearly five feet of continuous text spread across roughly 20 columns of writing.
The document, dated to between the third and second centuries B.C., is the oldest deciphered scroll in the collection.
It addresses questions of ethics, art, and human behavior, drawing on philosophical terms characteristic of Stoicism, including hormē (vital impulse) and phronēsis (practical wisdom).
Authorship has not been confirmed, though several clues point to Chrysippus, one of the great Stoic thinkers of antiquity.
The second major discovery was a previously unknown title among the surviving works attributed to Philodemus, the Epicurean philosopher. In the final portion of scroll PHerc. 139, papyrologists could make out the title: Philodemus, On the Gods, Book 8.
This matters because it establishes for the first time that On the Gods was a multi-book work extending to at least the eighth volume.
Until now, only the first book was known to exist.
The find forces a rethink of much of the philosophical corpus attributed to Philodemus and raises new questions about how the library itself was organized.
The team also recovered 70 columns of On Vices, Book 1, another work attributed to Philodemus.
The Only Intact Library of the Greco-Roman World
The Herculaneum Papyri come from what is known as the Villa of the Papyri, a Roman mansion buried by Vesuvius in 79 A.D. The villa most likely belonged to Lucius Calpurnius Piso, the father-in-law of Julius Caesar.
When excavators discovered it in the 18th century, they initially mistook the carbonized scrolls for charred logs — and burned some of them as fuel before understanding what they held.
The library contained, among other texts, at least 44 works by Philodemus, the Epicurean philosopher believed to have lived at the villa.
It is the only library from classical antiquity to survive with its scrolls physically intact, even though those scrolls remained unreadable for centuries. More than 600 manuscripts remain unopened, and portions of the villa itself have yet to be fully excavated.
Until now, any attempt to read what was inside the scrolls meant destroying at least some of the material.
Papyrologist Federica Nicolardi of the University of Naples Federico II explained it this way at the conference: virtual unrolling frees researchers from the age-old trade-off between preserving the scroll and reading its contents.
For the first time, both are possible at once.
The pace of progress has accelerated sharply. In the 24 hours before the announcement, researchers had virtually unrolled an entire scroll, generating roughly 140 new columns of text.
Until recently, fewer than 10% of the columns had been recovered.
With more than 600 manuscripts still sealed, what has been deciphered so far is barely the beginning.
