In 1912, Wilfrid Voynich traveled to the Villa Mondragone near Frascati, Italy, where a Jesuit college was quietly selling manuscripts to cover its debts. He was a Polish-born antiquarian dealer based in London, and he knew old books. What he pulled from the lot that day stopped him cold. The codex measured 23.5 by 16.2 centimeters, bound in soft vellum, water-stained, and filled with 240 pages of dense flowing script in an alphabet he had never seen. The illustrations were stranger still: bulbous plants that matched no known species, naked figures bathing in green pools connected by pipe-like tubes, and circular astronomical diagrams crowded with tiny labeled stars. Not one word matched any language in the Western or Eastern canon. Voynich paid an undisclosed sum, carried the book back to London, and photographed every page. He mailed copies to professors at the University of Pennsylvania and scholars at the British Museum. Within 2 years, every expert returned the same verdict: unidentifiable. Voynich held the manuscript until his death in 1930. He never learned what it said. The book entered the Beinecke Library at Yale in 1969 under call number MS 408, still unread, still carrying only his name.


The Voynich Manuscript: History's Most Baffling Book
A 240-page codex written in an unknown script has defeated every codebreaker since Wilfrid Voynich bought it in 1912.
Summary
The Voynich manuscript is a roughly 240-page codex written in an unknown script that has never been deciphered, illustrated with unidentifiable plants, astronomical diagrams and bathing figures. Its vellum has been carbon-dated to the early 15th century (1404–1438). It is named after Wilfrid Voynich, the book dealer who bought it in 1912, and is held at Yale University's Beinecke Rare Book & Manuscript Library as MS 408. Professional and amateur codebreakers — including the leading cryptanalysts of both world wars — have failed to crack it.
Key Facts
- Vellum carbon-dated to 1404–1438; the text was most likely written in the early 15th century
- Written in an unknown script, usually called "Voynichese", with no confirmed decipherment
- Named after book dealer Wilfrid Voynich, who purchased it in 1912
- Held at Yale University's Beinecke Rare Book & Manuscript Library, catalogued as MS 408
- Sections are conventionally labelled herbal, astronomical, balneological, cosmological and pharmaceutical after their illustrations
- William Friedman, the leading US cryptanalyst of the 20th century, studied it for decades without success
The Bookseller's Discovery
Frequently Asked Questions
Has anyone ever successfully decoded any part of the Voynich Manuscript?
No decipherment has achieved consensus acceptance among scholars. Since 2000 at least eleven peer-reviewed papers have claimed partial or full solutions, proposing languages ranging from Hebrew to Nahuatl to medieval Occitan, but each has been challenged and refuted by other researchers. The manuscript remains entirely unread as of 2024.
How old is the Voynich Manuscript and where is it kept today?
Radiocarbon dating conducted by the University of Arizona in 2011 placed the vellum's creation between 1404 and 1438, with 95 percent statistical confidence. The manuscript is currently held at the Beinecke Rare Book and Manuscript Library at Yale University under the call number MS 408, where it has been since 1969.
Could the Voynich Manuscript be a deliberate hoax or a book of nonsense?
The hoax theory is difficult to sustain because the text obeys Zipf's law, the statistical pattern present in all natural human languages, which random or deliberately nonsensical text does not produce. The vellum dates to the early 15th century, ruling out later forgeries. Most researchers consider the text either a genuine unknown language or a sophisticated cipher, not random noise.
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