The Voynich Manuscript is one of the most enigmatic books in history, known for being written in an unknown language and containing abundant, strange illustrations that have yet to be satisfactorily interpreted.
It is an illustrated medieval codex whose authorship, purpose, and meaning have been the subject of study by cryptographers, linguists, and historians since its appearance on the rare book market in 1912, although its creation dates back to the early 15th century.
Discovery, early references, and owners
The manuscript owes its name to the rare book dealer Wilfrid M. Voynich, who acquired it in 1912 from a Jesuit college on the outskirts of Rome, Italy. After his purchase, Voynich promoted the manuscript through exhibitions and lectures.
Later researchers, such as William Newbold, attempted to link it to the philosopher Roger Bacon, although this theory proved incorrect.
The manuscript later passed through the collection of Emperor Rudolf II and was linked to the alchemist Jacobus de Tepenecz.
In the 17th century, Johannes Marcus Marci sent it to the Jesuit Athanasius Kircher, a famous scholar.
Since 1969, it has been housed at Yale's Beinecke Rare Book & Manuscript Library (MS 408), where it continues to be the subject of study and digitization.
Scientific dating and origin
Radiocarbon analysis conducted by researchers at the University of Arizona in 2011 determined that the manuscript's parchment dates from between 1404 and 1438, placing it clearly in the European medieval period.
These tests refute versions that attributed it to earlier eras or to authors such as Roger Bacon.
Although the exact place of its composition is not known with certainty, many scholars suggest it was produced in Central Europe, possibly in northern Italy or Germany, based on the style of the illustrations and the script.
Physical structure and content of the codex
The Voynich Manuscript consists of approximately 240 bound pages of fine parchment (vellum), including some large fold-out sheets.
Its physical size is around 22.5 × 16 cm, and it is composed of six thematic sections based on the nature of its illustrations.
The illustrations are distributed into sections that include:
Herbal or botanical, with over 100 drawings of plants that do not always correspond to real species.
Astronomy or astrology, with diagrams of stars, suns, moons, and zodiacal symbols.
Cosmology, with medallions and spherical figures.
Biology, with depictions of human figures, often naked, entwined or connected by pipes.
Pharmacology, showing jars, containers, and possible medicinal elements.
Recipes or short texts accompanied by vignettes.
However, the text accompanying the illustrations is written in an unknown writing system—often called Voynichese—which has not been conclusively deciphered.
Most notable illustrations
The botanical pages contain hypothetical plants and botanical fictions; some appear to combine characteristics of several real species or lack any known equivalent in nature.
The astronomical section shows concentric circles labeled with unusual zodiacal signs, solar and lunar diagrams, and human figures in celestial contexts.
The biological depictions have drawn attention for including women in unusual positions, many bathing in green liquid or connected by networks of pipes, which has generated interpretations ranging from health symbolism to cosmological metaphors, though without academic consensus.
Theories on its content and meaning
Hypotheses regarding the nature of the text and its illustrations are numerous.
Some researchers argue that it could be a medieval cryptogram that has never been deciphered due to an exclusive code. Others believe it could be a type of encyclopedic botanical or pharmaceutical text produced in Central Europe; however, no hypothesis has achieved universal acceptance.
Other less conventional theories posit that the manuscript could be a medieval hoax (a deliberate deception), whose writing mimics a real language but lacks deep meaning.
Statistical tests and cryptographic models such as the “Naibbe cipher” have suggested mechanisms by which a similar text without clear semantic meaning could be generated, although it is unknown whether this method replicates medieval processes.
More recently, researchers have proposed connections to little-studied natural languages or sophisticated symbolic structures, although these approaches have not been universally validated and remain alternatives in academic debate.
