Age of Hegemony
Description
The Choran form in the Inner Sphere, where the earliest tradition recorded and accounted for time; the Galactic Date system (GD) is based on the accounting of time that can be traced through the rise and fall of galactic powers. GD-0.0.00.0.1 represents the first Cycle of the Gal-Date system and corresponds to the earliest date of recorded History.
Significance
The significance of the event in the context of your world.
Aftermath
Consequences and outcomes resulting from the event.