After creating a human workforce and setting themselves up as Gods, the Anu became increasingly involved in human society. Many of them started to live on the surface rather than on the ship, as the Earth’s atmosphere filtered out some of the energies.
They set up great houses in strategic places, and brought humans to entertain them, serve them, and labour for them. They taught their humans about governance, and gave them basic technological developments that would have taken them thousands of years to discover on their own. Great city states developed around them, where an organised priesthood ensured that the worship of the gods continued even in times when the Anu were in stasis.