Housed quietly in the Beinecke Rare Book and Manuscript Library at Yale University sits a small, unassuming vellum book measuring roughly 9 by 6 inches. It is known as the Voynich Manuscript, named after the Polish-American antiquarian bookseller Wilfrid Voynich, who acquired it in 1912. Despite over a century of scrutiny by the world's most brilliant codebreakers, its contents remain completely unreadable.
Physical Composition and Dating
In 2009, researchers at the University of Arizona conducted carbon-14 dating on the vellum pages of the manuscript. The results proved definitively that the animal skin used to make the pages dates back to the early 15th century (between 1404 and 1438). The ink and pigments used are consistent with the materials available in Europe during the Renaissance.
The manuscript consists of roughly 240 pages, though pagination gaps indicate several pages are missing. What makes the book legendary, however, is not its age, but what is drawn and written inside it.
Structure and Illustrations
The text is written from left to right in a looping, elegant script. Statistical analysis reveals that the text follows Zipf's law—a mathematical pattern found in all natural human languages—which suggests the text is not simply random gibberish. The manuscript is generally divided into several thematic sections based on its illustrations:
- Botanical: Large, detailed drawings of plants. Bizarrely, almost none of the plants depicted correspond to any known species on Earth. Roots, leaves, and flowers from different biological families seem spliced together.
- Astronomical and Astrological: Circular diagrams, some featuring recognizable zodiac symbols (like Pisces and Taurus), surrounded by concentric circles of text and stars.
- Balneological (Biological): Complex illustrations of nude women bathing in pools connected by an elaborate network of tubes, veins, and organs.
- Pharmacological: Drawings of isolated plant parts (roots, leaves) next to apothecary jars.
- Recipes: Dense blocks of text separated by small stars, resembling a list of instructions or recipes.
Attempts at Decryption
Since its rediscovery in 1912, the Voynich Manuscript has broken the spirits of master cryptographers. During World War II, William Friedman, the legendary codebreaker who cracked Japan's PURPLE cipher, gathered a team of experts to tackle the manuscript. They failed.
"The Voynich manuscript is the Mount Everest of historical cryptography. Many have attempted the summit; none have returned with the prize."
Theories regarding the nature of the text generally fall into three categories:
- A Cipher: The text is a known language (like Latin or early German) that has been encrypted using a complex substitution cipher or algorithm.
- A Constructed Language or Unknown Dialect: The script phonetically records an obscure, lost human dialect, or is an artificial language constructed by the author.
- A Hoax: The entire document is a medieval or Renaissance forgery created to be sold to gullible royalty (such as Emperor Rudolf II of the Holy Roman Empire, who historically purchased it for a vast sum of gold). The text might be sophisticated, meaningless gibberish generated through algorithmic methods like a Cardan grille.
The State of Modern Research
Today, with the advent of machine learning and artificial intelligence, new claims of decryption appear in the media almost annually. However, none of these proposed solutions have held up to peer review by linguistic and cryptographic authorities. Whether it is an esoteric medical text, the diary of an eccentric herbalist, or the most successful literary hoax in history, the Voynich Manuscript guards its secrets completely.