I agree with Ohtar. The yugoloths are created only one year after the baernaloths come into being? That's fast work!
Much more than two hundred years passed between the casting of the Labyrinth Stone and Shekelor's expedition. Shekelor only found a hint of the event, in a scroll ancient even to him.
The fiendish teleportation ability is, if I remember right, based on an aasimon the 'loths imprisoned, so that must have been invented after the creation of that celestial type.
The Great Modron March should be listed before Dead Gods, and Primus was slain before either.
"Torment" definitely took place before the Faction War, as the factions are doing fine. It probably happened around the time of the Factol's Manifesto or slightly thereafter.