The Dresden Codex is a Maya book, which was believed to be the oldest surviving book written in the Americas, dating to the 11th or 12th century. However, in September 2018 it was proven that the Maya Codex of Mexico, previously known as the Grolier Codex, is, in fact, older by about a century. The codex was rediscovered in the city of Dresden, Germany, hence the book's present name. It is located in the museum of the Saxon State Library. The codex contains information relating to astronomical and astrological tables, religious references, seasons of the earth, and illness and medicine. It also includes information about conjunctions of planets and moons. The book suffered serious water damage during World War II. The pages are made of amate, high, and can be folded accordion-style; when unfolded the codex is long. It is written in Mayan hieroglyphs and refers to an original text of some three or four hundred years earlier, describing local history and astronomical tables. Like all other pre-Hispanic books from Mesoamerica, the Dresden Codex takes the form of a screenfold. The pages consist of a paper made from the pounded inner bark of a wild species of Ficus (hu'un in Maya—a word that became semantically equivalent to “book”). Description The Dresden Codex contains 78 pages with decorative board covers on the front and back. Most pages have writing on both sides. They have a border of red paint, although many have lost this framing due to age deterioration. The pages are generally divided into three sections; students of the codex have arbitrarily labeled these sections a, b, and c. Some pages have just two horizontal sections, while one has four and another five sections. The individual sections with their own theme are generally separated by a red vertical line. Sections are generally divided into two to four columns. The Dresden Codex is one of four hieroglyphic Maya codices that survived the Spanish Inquisition in the New World. Three, the Dresden, Madrid, and Paris codices, are named after the city where they were ultimately rediscovered. The fourth is the Grolier Codex, located at the Grolier Club in New York City. The Dresden Codex is held by the Saxon State and University Library Dresden (SLUB Dresden, Saxon State Library) in Dresden, Germany. The Maya codices all have about the same size pages, with a height of about and a width of .