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A manuscript on fifteenth-century parchment, filled with an unidentified script and botanical, astronomical and bathing illustrations. Its practised handwriting has prompted comparisons between several scribal hands. More than a century of study has produced disputed readings, but no generally accepted decipherment.
It sits in a grey box at Yale. Catalogue number: MS 408.
170K
Individual glyphs written in an unknown alphabet of 20–30 characters. Approximately 35,000 "words" with a vocabulary of 8,000 distinct types. Some transcriptions show Zipf-like frequencies; this pattern alone does not establish meaningful language.
600
Gold ducats — reportedly paid by Emperor Rudolf II. The payment is reported in Marci’s letter rather than a surviving sale record.
113
Plant illustrations described in the Yale catalogue. Proposed identifications remain disputed; copying and stylisation may complicate them.
600 yrs
The world's most famous unread book. No proposed decipherment has gained broad scholarly acceptance.
The Evidence
The Impossible Plants
113 botanical illustrations fill the manuscript's largest section. Each shows a complete plant — roots, stems, leaves, flowers — surrounded by text in the unknown script. Many remain unidentified; some appear composite or stylised. That uncertainty does not prove that the plants were invented.
The Star Charts
The image here shows a botanical page. Elsewhere in the manuscript, circular diagrams contain zodiac symbols, concentric rings of text, and small figures. Researchers have identified what appear to be conventional representations of Aries, Taurus, and Pisces — some of the only recognisable elements in the entire manuscript. Groups of figures accompany the zodiac motifs, possibly representing the days of the month.
The Bathing Women
Alongside the botanical imagery shown here, another section depicts small nude female figures bathing in pools of green and blue liquid, connected by an elaborate network of pipes and tubes. Some stand in vessels; others float in channels. Their combined arrangement is difficult to interpret. Theories range from the circulatory system to alchemical symbolism to therapeutic baths.
Six Centuries of Silence
Creation
Carbon-14 dating places the vellum between 1404 and 1438. The animal material precedes writing; its date does not directly date the ink. European origin is suggested by comparisons with other manuscripts.
The Emperor's Court
Rudolf II of Bohemia reportedly purchases the manuscript for 600 gold ducats, believing it to be the work of Roger Bacon. His pharmacist Jacobus Sinapius's erased signature is found on the first page under UV light.
The Letter
Johannes Marcus Marci sends the manuscript to Athanasius Kircher in Rome with a letter describing its history. No accepted decipherment by Kircher is known.
Rediscovery
Wilfrid Voynich, a Polish-Lithuanian book dealer and former revolutionary, purchases the manuscript from Jesuits at Villa Mondragone near Rome. He finds the Marci letter tucked between the pages.
The Carbon Test
Radiocarbon dating at the University of Arizona confirms the vellum dates to 1404–1438. Ink and pigment analysis finds materials compatible with historical book production, without directly dating their application.
Key Figures
Wilfrid Voynich
Polish-Lithuanian revolutionary turned antiquarian book dealer. Escaped from Siberian exile, married a novelist, and spent his life hunting rare manuscripts. Found the manuscript at Villa Mondragone in 1912 and spent eighteen years trying to have it deciphered. He never succeeded.
William Friedman
A pioneering American cryptanalyst who led the team that broke Japan’s PURPLE diplomatic cipher before US entry into WWII. Led two study groups of elite military codebreakers against the Voynich Manuscript across three decades. Concluded the text was an artificial language — but never cracked it.
You Can See It. You Just Can't Read It.
The full manuscript has been digitised and published online. Anyone can examine every page, every illustration, every line of the impenetrable script. And yet after six hundred years, the world's best codebreakers, the world's most powerful computers, and an army of amateur sleuths have produced nothing — no confirmed translation, no accepted decipherment, no consensus on who wrote it or why.
The Voynich Manuscript remains the most mysterious document in history.
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Explore the manuscript’s ownership history, material evidence and competing attempts to read its unidentified script.