Please don't bump threads over a couple months old, unless you have a constructive comment to give (i.e. an update). Bumping just to say "neat o!" Will get many veteran forum goers annoyed.
Welcome to CFC by the way!
@Bebro: Seeing as somebody just bumped this... Excellent unit, Bebro, thanks.
Too much work at university (I know about that, I'm a Historian too).
Duuuhh... the Normans?
Anyway, enough speculation - Ares?
European Middle Ages, post-1920s. Rather military / politics than demographics.
Middle Ages AND post-1920s.