A Cryptographic Cosmos
Inside Yale University's Beinecke Rare Book & Manuscript Library rests a codex, approximately 240 vellum pages, known as the Voynich Manuscript. Radiocarbon dating of the calfskin parchment places its origin between 1404 and 1438. The book measures roughly 23.5 by 16.2 centimeters and is filled with an elegant script that remains completely undeciphered. This unknown writing system is dubbed "Voynichese."
Among its many strange illustrations of unknown plants and bathing figures is a section of cosmological diagrams. Folio f68v contains three circular drawings, often interpreted as astronomical charts or star maps. These diagrams feature a central point from which lines radiate, with star-like shapes and labels in the unknown script scattered throughout. The arrangement of these celestial bodies does not correspond to any known constellation or celestial map from that period, which deepens the puzzle. The text was written smoothly with a quill pen and iron gall ink, suggesting the author was fluent in the script, not laboriously encrypting a known language.