An Alien Author?
There is a document known as the Voynich manuscript. It is currently owned by the Beinecke Rare Book and Manuscript Library of Yale University.
It was discovered in 1912, in a Villa near Rome, by a book dealer. The dealer’s name was Wilfred Voynich and he spent the rest of his life [18 years] trying to decipher the manuscript. He, nor anybody else since, has been able to decipher one part of the manuscript.
Archeologists, linguists and decoders from around the World have all tried to make sense of the drawings and writings, all to no avail. Recently, by carbon dating, it has been found to of originated in the 15th century.
Some people have said that the manuscript could have been the work of an alchemist, as at that time alchemy was a secretive activity, often using codes in their work. So far however, neither manual nor computer aided decoding has been successful and so the code must be almost incomprehensible to the human mind.
So much for the writing; but the drawings also cannot be deciphered. Some say they are organic, others marine based and others say they are astrological.
It is said that in the writings, some symbols are recognizable but put together do not make sense.
Remembering that most ancient civilizations, had legends that aliens taught them how to write. Could this have been written by one of the same races, that taught our ancestors and that is why, some of the characters are familiar?
If this were the case, it could be some kind of log, of what he found on Earth or perhaps he was leaving us a guide to the heavens.
Either one of these scenarios would be very interesting but nothing would be as interesting as learning what an ancient alien was doing on Earth in the 15th century.