[Astromancer]

Given that it's cannon in THS that people can be force grown in vats and programmed according to the wishes of whoever's running the vat, truely divergent cultures can be set up in months. Do you want to recreate the court of Old Cole the Splendid, a legendary Romao-Celtic king and ancestor of King Arthur, in space? It won't be that authentic but the inhabitants will believe in their story. Culures can be based on any theory, ideal, cultural recreation, or fancy, programmable into a vat.