I shall try to work on it and see what I can come with, ah the imagination, its a wonderful tool. As for history, my map's story (in my head) is where back in the 1970's the US launched the Voyager spacecraft into space and x amount of years later, it found a planet with life on it and what do you know, it's an "Earth-like" planet.
That is if you to travel between the two... I guess, we'll have to figure that out.