When the Einher discovered Inadar, they needed a place to dock their ships. They set up a small village in the North-Western part of Inadar and named it Delos. Delos was used for importing and exporting goods from the island continent along with being a military hub for the Einher. After Ancient Artifacts were discovered the Einher had become less powerful. Because of this the other races started to inhabit Delos. With all of the new occupants, the small village slowly grew into the large city it is today.
Delos is the hub for both the economy and guilds