Eventhough the kingdoms will be place in the same world, each member will rule their land as they wish, meaning they’ll have as many races as they want, have magic or not etc, use the heraldry they need to use to match their collections, make it historically correct or not, etc. That's a quote from the guidelines.
I think it is clear that "to each its own", right? I mean, to fit everyone's collection we decided that each one can do whatever they want with their land, though I think it would be better for everyone not to go to far away from the majority or the type of civilization the majority will use, becuase that person won't have much to interact with. You know what I mean? So medieval, vikings, romans, egiptians, gauls, fairies....etc. All that could be called a "kingdom" in real life or fantasy is fine.
BUT we could say that a "kingdom of policemen" wouldn't fit,
though it is not forbidden, but a fantasy kingdom like that would stand (so far) alone and will have little possibilities of intertwine a story with the rest.
Another thing is we are not obliged to interact with EVERYONE. I hope that's clear too. So if some "historically correct kingdom" don't want to interact with a fairies kingdom, that's fine.
Please everyone re-read the guidelines

Let's go back to topic
