Is this grey cause it talks about religion? That stuff was bigger in 1500 than 2000, from that lense as religious text seems a reasonable track to follow.
idk
Sadly the radio carbon dating disproved two of my far out theories, which was, 1) The book survived from some earlier 'iteration' of life on the planet, where all plants were simply different. or 2) All planets form the same 'kind' of carbon-based life, and this book was sent/delivered to us by another planet.
Sadly, it's probably just someone's form of "art", and not even "real".