In reply to Lemony:
> maybe they were just more geographically minded than you?
Well, I do have a degree in geography. But as I'm fond of saying when people ask me things like "which is the world's longest river", that doesn't make me into a walking gazetteer. I expect I could recognise quite a few of the US states in outline, but Mississippi has never impinged on my attention to that degree, and I suspect I'm not alone in this.