From Royal Archivist Wiki
Nibiru is a Short Route World.
Originally settled by Mesopotamians fleeing the turbulent times just prior to the rule of Hammurabi of Bablyonia, Nibiru’s people prospered in relative peace for millennia. The planet’s massive empires favor trade over warfare, which has allowed them all to gain incredible prosperity. All the empires agree that Roma Exterra is a threat to their own sovereignty and thus are highly supportive of the Wàiguó Liánméng, with the three largest—Benekhre, Eridu-ilu, and Sattamarya—serving as permanent members of that organization’s Council of Elders.