Aestithikodex

The Aestithikodex was a book containing all the information in the world. Infinite Knowledge of Human History. The closest thing we've gotten to the Akashic Record in the Elementalist series. It was written by a single person and the company he owned over the course of a year, before the 1st Calamity, during the 90 Days 'till Doom.

It contained pretty much every book in existence, even seemingly irrelevant ones like children's stories or manga. Every single byte of data that's ever been on the internet was recorded in the Aestithikodex. Photos, articles, video games, (pron). If it existed, it was recorded in this "everything book". I mean, I can always make this sound really cool. But this isn't the wiki's main focus. The Aestihikodex contains near-infinite knowledge. And a lot about human history.

Historical Impact
The "Aestithikodex" Project was started as a way to preserve the legacy of humanity after Origin crashes into and destroys Earth. Like a last-ditch Voyager 3. And it did in fact survive the 1st Calamity, completely untouched by any Ethraksha. Maybe because a bunch of smart people attempted to figure out what part of the Planet would be affected by the crash the least, but this couldn't have really been the case since Origin crashed into the moon (like nobody predicted). But it survived nonetheless, and it remained untouched for about 3000 years.

During the events leading up to the 2nd Calamity, the Original Predater found the Aestithikodex and absorbed it. It learnt about the truth about Arcerra, Ethraksha's origins, and the destruction wrought upon the planet by the Human Race. The sheer volume of information was apparently even too much for Ethraksha to contain; the Original had to remove the Aestihikodex from it's programming, lest it went insane. It is now contained within a Pallobalt tablet buried deep underground, somewhere in the United Archipelagic Sky-islands.

Basically "How to skip a billion years of evolution": the book.