Players who gain certain factions under the new faction system will have access to greater details about history than the common citizen, until then, consider that much of the history has been suppressed by the Octarchy for reasons that are as yet unclear.
Each character will have been educated by the Octarchy on a range of common skills (language, mathematics, combat) however there are and will be secrets that various factions will have access to. Uncovering what exactly is the truth should, in time, be a part of the "game."
This will take a long time to write, so you'll have to be patient.