Books were made to be read or so we thought. However, there is one book, thought to be around from as early as the 15th century which cannot be read. This manuscript is known as the Voynich Manuscript. The language used in this manuscript is unlike any that has been studied by well-renowned professors all over the world. So complex is the script used that not even decoders from World War 1 and 2 have been able to break the code and revel what the book says. Based on the illustrations, it can only be speculated that the book refers to various types of plants and their medicinal uses.