The Voynich's Manuscript is an illustrated codex hand-written in an unknown writing system. The book has been carbon-dated to the early 15ᵗʰ century (1404--1438), and may have been composed in Northern Italy during the Italian Renaissance. The manuscript is named after Wilfrid Voynich, a book dealer who purchased it in 1912.
The pages of the codex are vellum. Some of the pages are missing, but about 240 remain. The text is written from left to right, and most of the pages have illustrations or diagrams. Many people have speculated that the writing might be nonsense. However, in 2013., Marcelo Montemurro of the University of Manchester and Damian Zanette of the Bariloche Atomic Center published a paper documenting their identification of a semantic pattern in the writing. This suggests that The Voynich's manuscript is a ciphertext with a message.