Every week, Ken Jennings and John Roderick add a new entry to the OMNIBUS, an encyclopedic reference work of strange-but-true stories that they are compiling as a time capsule for future generations.
In which John shares the soothing geographic mantra that has got him where he is today: sitting in a bunker teaching 30th-century cockroach-people how to tell medieval Central European principalities apart. Certificate #18088.