The Voynich manuscript (, VOY-nitch) is an illustrated codex, hand-written in an undeciphered script referred to as 'Voynichese'. The vellum on which it is written has been carbon-dated to the early 15th century (1404–1438). Stylistic analysis has indicated the manuscript may have been composed in Italy during the Italian Renaissance. The origins, authorship, and purpose of the manuscript are still debated, but currently scholars lack the translation and context needed to either properly entertain or eliminate any of the possibilities. Hypotheses range from a script for a natural language or constructed language, an unreadable code, cipher, or other form of cryptography, or perhaps a hoax, reference work (i.e. folkloric index or compendium), glossolalia, or work of fiction (e.g. science fantasy or mythopoeia, metafiction, and speculative fiction). The first confirmed owner was Georg Baresch, a 17th-century alchemist from Prague. The manuscript is named after Wilfrid Voynich, a Polish book dealer who purchased it in 1912. The manuscript consists of around 240 pages, but there is evidence that some of the pages are missing. The text is written from left to right, and some pages are foldable sheets of varying sizes. Most of the pages have fantastical illustrations and diagrams, some crudely coloured, with sections of the manuscript showing people, unidentified plants and astrological symbols. Since 1969, it has been held in Yale University's Beinecke Rare Book and Manuscript Library. In 2020, Yale University published the entire manuscript online in its digital library. The Voynich manuscript has been studied by both professional and amateur cryptographers, including American and British codebreakers from both World War I and World War II. Codebreakers Prescott Currier, William Friedman, Elizebeth Friedman, and John Tiltman were unsuccessful. The manuscript has never been demonstrably deciphered, and none of the proposed hypotheses have been independently verified. The mystery of its meaning and origin has excited speculation and provoked study.
Description
Codicology The codicology, or physical characteristics of the manuscript, have been studied by many researchers. The manuscript measures 23.5 by 16.2 by 5 cm (9.3 by 6.4 by 2.0 in), with hundreds of vellum pages collected into 18 quires. The total number of pages is around 240, but the exact number depends on how the manuscript's unusual foldouts are counted. The quires have been numbered from 1 to 20 in various locations, using a style of numerals consistent with those used in the 15th century, and the top right corner of each recto (righthand) page has been numbered from 1 to 116, using a style of numerals that originated at a later date. From the various numbering gaps in the quires and pages, it seems likely that in the past, the manuscript had at least 272 pages in 20 quires, some of which were already missing when Wilfrid Voynich acquired the manuscript in 1912. There is strong evidence that many of the book's bifolios were reordered at various points in the book's history, and that its pages were originally in a different order than the order they are in today.
Parchment, covers, and binding Samples from various parts of the manuscript were radiocarbon dated at the University of Arizona in 2009. The results were consistent for all samples tested and indicated a date for the parchment between 1404 and 1438. Protein testing in 2014 revealed that the parchment was made from calfskin, and multispectral analysis showed that it had not been written on before the manuscript was created (i.e., it is not a palimpsest). The quality of the parchment is average and has deficiencies, such as holes and tears, common in parchment codices, but was also prepared with so much care that the skin side is largely indistinguishable from the flesh side. The parchment is made from "at least fourteen or fifteen entire calfskins". Some folios (such as 42 and 47) are thicker than the usual parchment. The goatskin binding and covers are not original to the book, but date to its possession by the Collegio Romano. Insect holes are present on the first and last folios of the manuscript in the current order and suggest that a wooden cover was present before the later covers. Discolouring on the edges points to a tanned leather inside cover. Medievalist Lisa Fagin Davis describes the parchment as soft—a texture found in books that have been "heavily thumbed". This indicates the manuscript was handled or paged through a great deal and likely served some routine function such as a medical manual or celestial almanac. Its heavy usage also suggests it had a workmanlike role rather than anything sacred or ceremonial. The holes in the parchment from scabs, wounds, or insect bites, and the lack of any luxurious touches such as gold leaf, support this interpretation.
Ink Many pages contain substantial drawings or charts which are coloured with paint. Based on modern analysis using polarised light microscopy (PLM), it has been determined that a quill pen and iron gall ink were used for the text and figure outlines. The ink of the drawings, text, and page and quire numbers have similar microscopic characteristics. In 2009, energy-dispersive X-ray spectroscopy (EDS) revealed that the inks contained major amounts of carbon, iron, sulphur, potassium and calcium with trace amounts of copper and occasionally zinc. EDS did not show the presence of lead, while X-ray diffraction (XRD) identified potassium lead oxide, potassium hydrogen sulphate, and syngenite in one of the samples tested. The similarity between the drawing inks and text inks suggested a contemporaneous origin.
Paint Coloured paint was applied (somewhat crudely) to the ink-outlined figures, possibly at a later date. The blue, white, red-brown, and green paints of the manuscript have been analysed using PLM, XRD, EDS, and scanning electron microscopy (SEM).
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