If you have heard the Voynich manuscript, perhaps you may know the Oera Linda book.
Ancient manuscripts have always been considered as precious, some of them perhaps you have at home, like the Holy Bible or any sacred book which came from a manuscript form, but the Oera Linda Book is not that old. Its origin is dated in the 19th century, more recent than the Voynich manuscript.
The first time this book started becoming attractive by people was at the end of the 1860s. The proprietor at that time was Cornelis Over de Linden. The book is normally written in Old Frisian, and it contains some mythologies based on some deities and some religious facts from past centuries.
The only mystery of this book is we do not know who wrote it. After analyzing the texts , some persons say that the book may be a fake, enriched with hoaxes, and so on… In addition to this, some are saying that the proprietors themselves were the writers of it.