The Glories of the Empire is a campaign lasting from the characters' initial days as commoners all the way until we tire of it, essentially.
These house or alternate game rules are being used in addition to the DnD 3.5 RPG system, as they help to set the desired tone for the game.
Those who are (or have been) active members of the party, including NPCs that the party has travelled with as companions.
These are things any commoner would probably know about the world they live in, particularly the Empire of Astor.
These are things most commoners don't have time to learn, but that scholars would readily be able to discuss.
These are things most people in general don't know, but the party has learned about anyhow.
These are links to other materials, or material copied from other sources and provided for convenience, to prevent shuffling through books during play, etc.