Layers of text, echoes of erasure
Constantinople, 10th century • Erased 13th century
The most famous palimpsest in the world. A 13th-century monk scraped away seven treatises by Archimedes—including the only surviving copy of "The Method of Mechanical Theorems" and "Stomachion"—to create a prayer book. Rediscovered in 1906, modern imaging techniques have recovered most of the mathematical text, revealing that Archimedes was 2,000 years ahead of his time in concepts approaching calculus.
Alexandria, 5th century • Overwritten 12th century
A 5th-century Greek Bible was scraped clean and overwritten with 38 treatises by Ephraem the Syrian. The original text, a near-complete Greek Bible, is one of only four great uncial manuscripts. Chemical treatments and ultraviolet photography have recovered much of the original, making it invaluable for biblical scholarship.
Vatican, discovered 1819
Cardinal Angelo Mai discovered fragments of Cicero's lost treatise "On the Republic" beneath a commentary on the Psalms by Saint Augustine. The discovery included the famous "Dream of Scipio," a cosmological vision that influenced medieval thought. Only about a third of the original work was recoverable.
Egypt, 6th-9th centuries
Brought to the British Museum from a monastery in the Nitrian Desert, this palimpsest contains layers upon layers: an 8th-century Syriac text over a 6th-century Greek grammar over fragments of Homer's Iliad and works by Euclid. Each scraping failed to completely erase its predecessor.
Novgorod, Russia, c. 1000 CE
A wax tablet palimpsest—not parchment but wooden boards with wax surfaces that were repeatedly smoothed and rewritten. Analysis of the wax impressions revealed hundreds of texts written and erased over time, including some of the oldest examples of written Russian and possible references to pre-Christian practices.
Sana'a, Yemen, 7th-8th centuries
Discovered in 1972 during mosque restoration, this palimpsest contains fragments of the Quran written over an earlier, variant Quranic text. The undertext shows small differences from the standard text, providing crucial evidence for the textual history of Islamic scripture and sparking ongoing scholarly debate.