The day the Herculaneum scrolls began speaking…

The Vesuvius Challenge has achieved a historic discovery in the Herculaneum scrolls, revealing new texts, titles and authors unknown to history and ushering in a new era for the study of the ancient world. The discovery was made possible through high-resolution micro-CT scanning conducted at the ESRF and Diamond Lightsource in the UK.

“For nearly two millennia, many of these texts have been physically preserved but intellectually inaccessible,” Brent Seales, Vesuvius Challenge co-founder and the Stanley and Karen Pigman Chair of Heritage Science at University of Kentucky, says. “Today — after years of interdisciplinary work combining advanced imaging, artificial intelligence (AI), academic research and an innovation contest — we are finally able to read them.”

One of the oldest scrolls in the collection

Among the most significant findings announced is the recovery of substantial new text from PHerc. 1667 — a scroll housed in Naples, Italy.

The Vesuvius Challenge team has now virtually unwrapped the surviving portion of the scroll — revealing nearly 1.5 meters of continuous text and approximately 20 columns of writing.

“This scroll was deemed completely unreadable when part of it was opened in the 1980s,” Federica Nicolardi, assistant professor in papyrology at the Università degli Studi di Napoli Federico II, said.

“The scroll’s handwriting and internal references suggest the artifact dates from the second century B.C. or possibly from the late third century B.C. — making it one of the oldest scrolls in the collection,” she explained.

While the title and author remain unknown, both the early dating and its contents suggest a writer other than Philodemus of Gadara — the Greek philosopher whose works predominate the discoveries from Herculaneum papyri to date. 

A philosophical -stoic?- treatise

According to the papyrological team’s analysis, the text does appear to be a philosophical treatise concerned with ethics, arts and human behavior, likely reflecting Stoic thought. 

The recovered text preserves discussions of core Stoic concepts, including ὁρμή (hormē), or impulse, understood as the drive to act common to both humans and animals. The author appears to warn against excessive impulse — ὁ πλεoνασμός κατὰ τὴν ὁρμήν (ho pleonasmos kata tēn hormēn — when reason fails to regulate behavior and leads to a harmful passion or diversion from one’s goals.

Another key concept is φρόνησις (phronēsis), or practical wisdom — the set of intellectual activities that guide one to make the right choices and to choose virtues over vices.

Read more on the ESRF website

Image: The scrolls from Herculaneum

Credit: EduceLab

Uncovering ancient text from the Oxford Herculaneum scroll

In July 2024, Diamond’s powerful light enabled a team from the nearby Bodleian Libraries to scan a 2,000-year-old Herculaneum scroll. The scroll, one of three housed at the libraries, was studied on the I12 beamline and the collected X-ray data has played a crucial role in deciphering the text of this ancient artefact. 

By scanning the scroll, researchers were able to generate an image of the inside of scroll Pherc. 172, which was buried by the Mount Vesuvius eruption in 79AD. The papyrus texts were flashed seared by the volcanic heat and are thought to be part of the only remaining intact library from the ancient world.  

The scroll was buried and carbonised during the eruption, and previous attempts to open similar scrolls have been largely disastrous. But by using the unique capabilities of Diamond’s beamline, as well as a machine learning programme (AI), researchers have been able to create an “un-rolled” image of the carbonised layers.  

The Oxford scroll is unique due to the chemical composition of its ink, which appears more clearly in Diamond’s X-ray scans. It may be that this scroll’s ink contains a denser contamintant, such as lead, that makes its text more legible than other Herculaneum scrolls.  

The image was made possible by the advanced scanning capabilities of the I12 beamline, a high energy X-ray beamline for imaging, diffraction and scattering, which operates at photon energies of 53-150 keV. 

The scanning and deciphering of the text is part of the Vesuvius Challenge, a global machine learning competition which hopes to recover the contents of the scrolls that were discovered in the 1750s. The majority of the scrolls reside at the Biblioteca Nazionale di Napoli, although several were gifted to the Bodleian Libraries at Oxford University, the British Library and the Insitut de France.

This is not the first time that Diamond has played host to one of these ancient scrolls. In 2019, Professor Brent Seales, who co-founded the Vesuvius Challenge, brought two scrolls and several fragments from the Institut de France. By using Diamond’s scans, along with the pioneering AI software platform his team developed, thousands of characters making up 5% of the scroll, were identified.    

Read more on Diamond website

Image: The Bodleian Libraries Herculaneum scroll.