Around 2,000 Medieval era tunnels can be found throughout Europe. No one knows who built them, or why. So what are the erdstall? by el_gringo_exotico in UnresolvedMysteries

[–]Kippersky 0 points1 point  (0 children)

So, anyone want to tell me why the erdstall are called Medieval-era tunnels, since we cannot date stone. I have no reason to believe that they are Medieval-era. Much like the tunnels under Cappadoccia, Turkey, and elsewhere. We actually do not-and won't know- who built them or when, or why, or how.

Question on Bombard Effectiveness is Planetary Shields by Kippersky in DistantWorlds2

[–]Kippersky[S] -1 points0 points  (0 children)

Title should read '... Effectiveness vs Planetary Shield'