In your last post (great post btw!) you said that Romano considers himself older than America because he has been existing for a longer time. However, there’s still the thing that Romano is said to be 22-23, while America is 19 (which makes sense considering the historical and cultural baggage Italy has and America lacks), so he could actually be referring to that. Or am I missing something else that proves your theory? (it definitely could be this, but I can’t think of anything else…)

No, no. All I meant to say is that historical age is how the nations organize themselves. Biological age is predicated on political, cultural, economic, and historical factors. 

It wouldn’t make sense to take biological age as a way of organizing who’s an elder given that you have characters like Latvia who’ve existed way longer than countries like America, but because of political repression and a lacking industrial economy, they’re younger biologically.

When Romano says he’s an elder, it’s not referring to his biological age in comparison to America. I say this because in the strips covering the second Industrial Revolution (approx. 1870-1914), Romano had just become an adult having obtained his independence. 

Notice how he refers to America as a pipsqueak…

…and then later as someone [historically] younger than him.