Somewhere in a French museum, behind a 20th-century illustration of the Prophet Daniel with lions, the handwriting of Archimedes of Syracuse has been waiting for nearly a thousand years.
In March 2026, it was finally found.
**What the Archimedes Palimpsest Is**
In the ancient world, Archimedes of Syracuse — born around 287 BC — was one of history's greatest mathematical minds. He calculated an approximation of pi, developed methods of integration 1,800 years before calculus was invented, understood the principles of the lever and the pulley, and described the physics of floating bodies in ways that remain foundational today.
Much of what we know about his work comes from a single remarkable document: the **Archimedes Palimpsest**.
A palimpsest is a manuscript where the original text has been scraped or washed from the parchment so it can be reused — a common medieval practice with expensive vellum. In the 10th century AD, a scribe copied several of Archimedes' works onto parchment from an older manuscript. In the 12th or 13th century, another scribe scraped those mathematical texts away and wrote Christian prayers over them.
The resulting document — prayer text on top, Archimedes' geometry beneath — was eventually identified by scholars, studied with painstaking care using multispectral and X-ray imaging, and is now considered one of the most important scientific manuscripts in existence. The main body of the palimpsest is held at the **Walters Art Museum in Baltimore, USA**.
**But Some Pages Were Missing**
The palimpsest, as scholars had it, was incomplete. Several pages — scattered during the centuries when the manuscript passed between different collections, dealers, and private owners — had never been located.
Until now.
**The Discovery**
In March 2026, **Victor Gysembergh**, a researcher at France's **Centre National de la Recherche Scientifique (CNRS)**, identified a missing page from the palimpsest — **folio 123** — at the **Musée des Beaux-Arts in Blois**, in the Loire Valley of central France.
The identification was made by comparing the page with **photographs taken in 1906** by the Danish scholar Johan Ludvig Heiberg — photographs now preserved at the Royal Danish Library — which documented the manuscript before its pages were scattered.
The physical characteristics matched. The parchment construction matched. And most critically: fragments of text visible on the page matched passages from Archimedes' treatise **'On the Sphere and the Cylinder, Book I'** — one of his most celebrated works, in which he demonstrated that a sphere has exactly two-thirds the volume and two-thirds the surface area of its circumscribed cylinder.
**What's Hiding Underneath**
One side of the newly identified leaf shows prayer text **partially covering Archimedes' mathematical diagrams and writing**. The other side has an additional challenge: it's obscured by a **20th-century illustration** — depicting the Prophet Daniel with lions — painted directly over the medieval parchment.
Both layers of obscuration are now an opportunity rather than a barrier. Scientists plan to use **multispectral imaging** and **synchrotron-based X-ray fluorescence** — the same advanced techniques that revealed Archimedes' hidden text in the main palimpsest — to read through the paint and prayer text to the mathematics beneath.
Beyond folio 123, researchers now believe this discovery may lead to the identification of **two further missing pages** from the palimpsest — also possibly lurking, unrecognised, in museum and library collections somewhere in the world.
**Why It Matters**
The Archimedes Palimpsest has already transformed our understanding of ancient mathematics. When the main document was analysed using advanced imaging at the Walters Art Museum in the early 2000s, scholars found **previously unknown mathematical arguments** that pushed back our understanding of how far ancient Greek mathematics had developed.
Archimedes, it turned out, had been working on ideas about **infinity and the infinitely small** — proto-calculus concepts — more than 1,700 years before Newton and Leibniz independently reinvented them.
Every additional page recovered from the palimpsest is a potential window into a mind that was centuries ahead of its time.
Folio 123 has waited in a French museum, unknown, for perhaps hundreds of years. Now the imaging equipment is being scheduled. The paint and prayer text will be looked through. And Archimedes' geometry will emerge again from beneath. 📜✨
*Sources: CNRS (cnrs.fr, March 2026) · artnet News · Heritage Daily · Economic Times · Walters Art Museum · Royal Danish Library*
