I write AUs and multi-fandom crossovers; I was long prepared to think things through long before I got to Hetalia fandom. :D And I'd heard that Himaruya considered making Ireland a girl at some point - and a crybaby, for some reason - so I figured I had a little justification for her gender.

Wow. Wait... So his technical birthday is the same month as Alfred, Matthew, and Hong Kong! I always put it on St. George's Day, but that's interesting.