Voynich manuscript

The Voynich manuscript is a parchment codex, formally catalogued at Yale as Beinecke MS 408. Encyclopaedia Britannica describes it as containing 102 illustrated folios, or about 234 pages. The writing uses an unidentified script; there is no generally accepted decipherment. Because the text cannot be read, librarians and scholars describe the book's sections from their imagery rather than from confirmed translations. Yale groups the images into six broad areas: plant specimens; astronomical and astrological drawings; bathing scenes; cosmological medallions; pharmaceutical illustrations of herbs and roots; and text entries marked by star-like flowers, possibly recipes.

The manuscript's exact date and place of production remain uncertain. Yale's Beinecke Library describes it as made in Central Europe at the end of the fifteenth or during the sixteenth century, while scientific testing of its materials has been considered consistent with fifteenth-century production. The distinction matters: dating parchment does not by itself identify the writer or establish when every part of a book was written. Its unknown script and unusual illustrations have prompted proposals about its language and purpose, but no proposed reading has become an accepted translation.

The earliest confirmed owner identified by Yale was Holy Roman Emperor Rudolph II, who reigned from 1576 to 1612. Later owners included the pharmacist Jacobus Horčicky de Tepenec, the scholar Georgius Barschius and the Jesuit scholar Athanasius Kircher; a letter sent with the manuscript to Kircher in 1666 survives with it. The Polish-American bookseller Wilfrid Voynich acquired the volume in 1912, giving it the name by which it is now known. Bookseller H. P. Kraus donated it to Yale's Beinecke Library in 1969. Researchers have used historical, material and statistical methods to examine the codex. A 2013 information-theoretic study found patterns in the distribution of its words compatible with patterns in real-language sequences and argued that these supported a genuine message; that analysis did not decipher the text or determine its language.