Ugh that would be so cool. I could imagine doing like, layers of transparencies with map markers, so you can flip back and forth and see how boundaries changed over time, have specific "inventions" layers and such... yeah, I could imagine this being manageable to do on paper, though an absolute BEAST to reduplicate via printing and such. (We have done much simpler versions of this of our childhood neighborhood so we can track escape routes and attack rates, for instance.)

Hmmmmmm. That would be 2D maps, not a 3D globe though. THAT, my little 2D brain cannot handle.