The Voynich Manuscript: Secrets of the Unreadable

Picture this: a battered old book lands on a table in 1912, its pages bursting with alien script and wild, impossible plants. Wilfrid Voynich, a Polish antiquarian, just bought it—and as he flips through, he realizes he’s staring at the world’s most unreadable book. Right away, the questions start: who wrote it, when, and why does no one on earth understand a single word?

This is the Voynich Manuscript, the internet’s favorite unsolved riddle. Think of it as the Rosetta Stone, only the language on it doesn’t match anything we’ve found, and the pictures inside—a parade of naked women in green baths, spiral constellations, and plants that don’t exist—are like nothing else in medieval Europe.

Let’s rewind to the manuscript’s roots. Radiocarbon dating, done by the University of Arizona in 2011, says the parchment was made between 1404 and 1438. That’s earlier than the age of Gutenberg’s printing press. But here’s the first twist: no one can say where exactly it was created. Art historians argue about the architecture in the illustrations—some point to the swallowtail battlements common in northern Italy, others swear the zodiac diagrams look German. The best anyone can say is: “somewhere in Central Europe, early 15th century.”

The text itself is an even bigger mystery. The script, nicknamed “Voynichese,” uses between 23 and 40 distinct characters, with some shapes resembling Latin letters, others closer to numbers or unknown symbols. There’s nothing else like it—no matching alphabet, no similar codes from the period, nothing. Statistical analysis, run through modern computers, suggests the writing isn’t random gibberish. It follows Zipf’s Law, a pattern found in natural languages, and recent AI studies—like one from the University of Alberta in 2018—believe the underlying text might be a coded form of Hebrew. But these are just educated guesses. Every attempt to translate even a single sentence has failed.

Then there are the pictures. The manuscript originally clocked in at about 240 pages—some of which are now missing. Each page is packed with illustrations: unidentifiable herbs and flowers, astrological diagrams with fantastical stars, naked figures bathing in interlaced pipes, and strange pharmaceutical containers. Some diagrams fold out, stretching several pages wide. None of these images match known medieval sources, and the plants don’t exist in real life—or they’re so stylized they can’t be identified.

The story gets stranger as the manuscript passes through history’s hands. In the late 16th century, Holy Roman Emperor Rudolf II reportedly paid 600 gold ducats for the book—a sum that could buy a small estate. He believed, or at least hoped, that the manuscript was the work of Roger Bacon, the English philosopher, theologian, and mad scientist of the 1200s. That belief likely started the legend: “This is a book of forbidden knowledge.”

After Rudolf, the book cycles through collectors you’d expect to find in a Dan Brown novel. Jacobus de Tepenec, a court pharmacist and newly made noble, signs his name on the first page. George Barschius, an alchemist in Prague, sends fragments of the script to Jesuit polymath Athanasius Kircher in Rome, begging him to crack the code. Kircher, a master of languages and a self-proclaimed decipherer of Egyptian hieroglyphs, tries and fails. In 1665, Johannes Marcus Marci, Barschius’s friend, ships the whole manuscript off to Kircher with a note that basically reads: “You’re my last hope.”

The manuscript spends over two centuries hidden in the archives of the Collegio Romano in Rome. Its cover is replaced and repaired by Jesuits, its pages rearranged and renumbered, its original wooden binding lost to bookworms. In 1912, Wilfrid Voynich, on a book-buying trip in Italy, stumbles on it. He’s instantly obsessed. He starts a campaign to prove it’s the lost work of Roger Bacon, hoping to sell it as a scientific bombshell. He’s so secretive about the source that he invents stories about finding it in Austrian castles. After Wilfrid’s death in 1930, the manuscript bounces from his widow Ethel, to her friend Anne Nill, to book dealer Hans Peter Kraus—who, after failing to sell it for $160,000, donates it to Yale University’s Beinecke Rare Book & Manuscript Library in 1969.

Now, here’s where the obsession explodes. The manuscript is digitized, uploaded, and dissected by cryptanalysts, linguists, and hobbyists on every continent. During World War II, American and British codebreakers—fresh from breaking the Japanese and German ciphers—take a crack at it and give up. In the age of the internet, Reddit threads, academic journals, and YouTube channels keep the investigation alive. Someone even builds a neural network to look for hidden layers in the script.

The theories are endless. Some propose Roger Bacon, banking on the book’s supposed scientific diagrams, but the parchment is a century too late for him. Others point to John Dee, Queen Elizabeth’s astrologer, or Edward Kelley, a notorious alchemist and forger. There’s even a theory pinned on Anthony Ascham, a 16th-century English physician. In the scholarly world, René Zandbergen’s take is: the author might be “someone totally unknown.” The idea that the book was an intentional hoax has been floated, but computer models show the text structure is too consistent and complex for a random fake.

In 2026, a new study from arXiv suggests that the manuscript’s text shows patterns found in advanced ciphers—layers of structural constraints that don’t occur in ordinary language or random text. This means the book might not just be an unknown language, but a code within a code. And here’s a twist from recent research: a team led by Lisa Fagin Davis finds at least five different scribes contributed to the text, each with their own handwriting, suggesting this wasn’t the project of a lone genius, but maybe a secretive community or workshop.

What keeps people hooked isn’t just the manuscript’s resistance to all attempts at translation. It’s the sense that, at any moment, someone might finally break the code and reveal a lost world—a medieval encyclopedia of secret knowledge, a long-lost language, or perhaps the world’s most elaborate prank.

The manuscript is still locked away in Yale’s Beinecke Library, catalogued as MS 408. You can flip through every page online, but the meaning remains secret. The last page is blank, as if daring you to invent your own ending.