No. What I mean is why is your map being divided into superregions?Due to some events or something like that. Or some flags. The same reason that the map is divided into areas and regions too; just on the largest scale. There has always been continent size regions; even before states were introduced. Back then they just overlapped most of the time.
I for instance think that the Asia super region was what was used to decide who you got that aweome expansion ideas finisher CB against.