[quote=@Combo move]
[@Cyclone] If this is set in a 1940's setup, would an existing nation that arose from a colony long ago be feasible? I wanted to have a established history rather than be a modern colony. If that makes sense.
[/quote]

You could conceivably have a few centuries of history as a colony, yeah. Perhaps even more if you were one of Yllendthyr's colonies or former vassals, since I don't know how long the elves have been colonizing.

But also, don't discount the idea of  having an established history with natives and then a shorter one with foreign colonists. It could be interesting to write about how the natives colonists reacted historically and how the different races treat one another today, or even have the colonists and natives merge into one culture sort of like with Mexico.