This is the Encyclopedia Arelithica.
Its purpose is to store historical and setting information about the world. (Mechanics have their own wiki).
Articles should, where possible, be written in character, so that they can be imported directly into the game (once reviewed and approved by an admin). The character you write as doesn't need to be one you're actually playing - just a fictional and possibly unattributed author who exists at some point in the game world.
Discussion on EA subjects is best taken to the EA Discord channel.