Codex is a Latin word meaning “book” or “manuscript.” It has been used in the context of books and manuscripts since at least the 15th century. In modern times, it is often used to refer to a book that contains many different types of information, such as laws, regulations, and other documents.

The term codex also refers specifically to an ancient form of the manuscript that was written on both sides of thin sheets made from animal hide or papyrus plants. These early manuscripts were usually bound together with leather straps into volumes known as codices (plural for “codex”). The oldest known example dated back to around 200 AD and was discovered in Egypt; however, many more senior examples are found elsewhere throughout Europe and Asia Minor.

In more recent years, the term “codex” has come to be applied more broadly than just ancient manuscripts – it can now refer to any book-like document containing multiple pages which are organized into sections or chapters by topic or subject matter. This includes printed books like novels and digital ebooks stored on tablets and computers like iPads & Kindles!

Codices have played an essential role in preserving knowledge over centuries – they provide us with valuable insight into past cultures & civilizations through the stories & illustrations contained within them! As technology continues to evolve, so too does our understanding of what constitutes a codex; regardless of its physical form, though, one thing remains sure: these documents will continue to play an essential part in human history for generations to come!