I think that depends on the kingdom and the server. For the EU I'm certain to write down the history of the kingdoms because that is part of the job I want to take. Maybe there can be similiar projects on the NA and APAC servers. I also imagine that the Devs will release something like a summary of the events as it would be a great way to draw more players in the game 'look our history is dictated by players, you could be one of them in this cool new total free sandbox world.'
We will know once KoE will be released.