As a people, the Aun claim the mantle of succession from Old Humanity. Though humanity persisted on Cradle -- Earth, as the Aun call it -- through the events of the Fall, only the Aun can trace a direct line to the precursor race.
The Karrakin Trade Barons are the oldest established non-Cradle culture.
Union is the central organizing body of the populated galaxy. It is a hegemonic, post-capital state, currently in its third iteration.
The Voladores are an ethereal, nomadic people. Universally tall, thin, and garbed in distinctive fullbody environmental suits, they are a society out-oftime from even the most distant Cosmopolitans.