Summary
Later ages remember the collapse of the galaxy-spanning Luminari order as the Vanishing. *1
To the peoples who survived it, the event looked like a disappearance: Vanished ships were gone, interstellar travel collapsed, and worlds that had once belonged to one network were left isolated with only ruins, relics, and half-understood warnings. The term therefore names not only the loss of a people, but the moment the old galactic order fell apart. *2 *3
The present story begins inside that long aftermath. Nearly every major thread in the setting is shaped by some surviving fragment of the vanished age: stranded populations, broken gate routes, buried emergency plans, and the lingering effort to understand what truly happened. *4 *3
SpoilerPhantom Epoch Extras 32 / 36
Late final-station revelations identify the disappearance as the visible aftermath of Gate Cleansing: the Vanished gathered around the corrupted gates, gave their lives sealing the Others away, and vanished from history while dark energy escaped into the surrounding systems. *5