Since I'm so ridiculously obsessed with Gundam Wing, I was thinking about how much older the gundam pilots are than Relena. I then remembered that if they were older than Relena, their birthdays would have to be before April 8, because that's when Relena's birthday is.
I learned in Episode Zero that all of the Gundam pilots were born in AC 180. So if all of the gundam pilots are older than Relena (which is pretty much certain, seeing as they were fifteen when they were sent to Earth and Relena was just turning fifteen when they all landed), their birthdays would have to be before April 8th of the year AC 180, unless Relena was born in AC 181 (which is unlikely because I think it was officially stated somewhere that she was born in AC 180). Isn't that weird?