Per 
Concepts:
History Itself
Classed Euclid
Uncontainable, primary containment is to focus on keeping the world believing in a non-anomalous history.
Describes the phenomenon of history itself, and how much of it had been altered to the public because of events caused by SCPs. Includes SCP-049's involvement in the spread of the bubonic plague, SCP-3199 going back to the age of the dinosaurs, the creation of SCP-1689 leading to the Irish potato famine, and I have plans to add even more involvement (I just need ideas).
A Textbook
Classed Safe
Conatined in standard item containment that cannot be accessed unless approval by O5 command is given.
Item appears to be a standard copy of an AP "World Civilizations, The Global Experience" Fifth Edition textbook. The book has many more pages that what the spine should have, and is constantly writing itself. Is someone writes on a blank portion of the book, it will eventually become reality, depending on where it was written. Book has ██████████████████████ pages, and the last page simply states "History ends here." (I might try and interconnect this and the first idea if I go with that one, sort of as a SCP-4000-2)
