Ha, look at my nation. It's even smaller than the Rheinland. And if it wasn't for Mashall making his nation only a single city, I'd be the smallest nation! Grrr... :P

EDIT: Ha, that typo of Marshall's name is rather amusing considering my nation.

EDIT II: [quote=@Isotope]
Well, realistically any significant mutation would take a long time to become prominent.

And i still see the issue that in Western Nations very little scientific knowledge would be gone.
[/quote]

Yeah. I think it should at least be long enough that nobody actually is left who was actually alive during the Apocalypse.