The Voynich manuscript is an illustrated codex hand-written in an unknown writing system. The manuscript is named after Wilfrid Voynich, a book dealer who purchased it in 1912. The text is in a code that no one has been able to break, and so the mysterious manuscript continues to hide its meaning.
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. There have been many theories about the purpose and the authorship, and some people have even speculated that the writing might be nonsense. Modern technology has met with little success in revealing the secrets, but there are some clues.