The Oera Linda Book is a 19th-century translation by Dr. Ottema and WIlliam R. Sandbach of an old manuscript written in the Old Frisian language that records hi

"Chronicles from pre-Celtic Europe" is a factual account of European and Asian pre-history as described in an ancient manuscript discovered in the Netherlands i

This vintage book contains Alexander D’Agapeyeff’s famous 1939 work, Codes and Ciphers - A History of Cryptography. Cryptography is the employment of codes

This ebook is the complete reproduction of the preserved Voynich Manuscript, formatted for high resolution color ebook reader displays. The Voynich manuscript,