Oh, and one new thing,
Seeing as the resources are not having an impact (everyone has merely the same!), later in the game resources will begin deteriating, creating the need for wars and territory gain (i.e. the Romans wanting a powerful army using grain, Britain wanting the powerful Navy using wood, etc). I also, determining on numerous reasons and chance, will start rebellions and outside invasions (i.e. nubians, Vikings, Mongols, Persians etc.). This, however, won't be until far after all territories are taken and game is settled.