Seriously Antonine, amazing work. I spent some time trawling through a bunch of the various Far East realm wikis in order to peace together what the history "looks" like, but you've gotten a great start on a comprehensive history of the continent.
I even like the idea that there are "lost" periods due to no one making a record of events. This reality encourages those realms to keep records if they want to have any lasting "legacy".
