Ancient Route: The Lost Home

Human has a very long chain of history, especially when they are in the year 17,000 GE, living in a huge ball of machinery planet primarily called Dwantor.
Holograms are as normal as smart phones, books are as old as papyrus, and humans are as rare as gems.
With the long-lost piece of history, what will they uncover about the true origin of the humankind. They believe the history holds the hidden glory of humanity, but what exactly are those?