Saragossa manuscript
From Tardis Wiki, the free Doctor Who reference
The Manuscript Found at Saragossa, also called the von Worden manuscript or Saragossa manuscript, described von Worden's experience of false consciousness following apparent exposure to praxis. It was the only known evidence of praxis on Earth in the preindustrial era.
It was recovered in the early 19th century by Count Potocki. (PROSE: The Book of the War)
