Ah, you mean a realm propaganda page! That's just a text box, and should be an easy add, if approved.
A history of rulers wouldn't be hard to add either. The only downside is that it'd probably start now, unless they find a way to pull it from the family histories somehow.
Yup, exactly. Basically the same as what a lot of realms already put on the wiki - an official history presented from their perspective. So just another way for players to add fluff in game to flesh out their realm and its heritage and to demonise their enemies