In the "Creation Myth", humanity was revived after eons of them being extinct, with each Remnant of the Ice Titan reviving a portion of humanity to serve as their flock. I'm thinking the Remnants basically revived the people from the territories where they fell, which could've contained a bunch of different ethnicities from the previous world. For example, (and before you start forming theories, no, this RP doesn't take place on planet earth) let's say Omestris fell on what was once Asia and they revived everyone who had last lived on that continent. There'd be a whole spectrum of different people from different ethnic groups sharing in the divine power Omestris blessed them with, these people then, as a collective, would've been the first Omestrians. 

 That's the way I picture it happening. Any thoughts?