There are a
few reasons.
1) Personality Change = Loss of Memory
It’s stated in chapter 1 of world stars that upon gaining a new title,
nations can also undergo a personality change.
Because your personality, as in how you interact with others and the
world, is very much rooted in experience [memories], this implies that gaining
a new title causes the nation to lose all memories from their previous
existence.
In other theories, this is what I
use to explain the overwhelming evidence that Germany is suffering from amnesia
and doesn’t remember his past existence as Holy Rome.
Basically, how I read the panel is that the personality change is
sudden; it happens spontaneously. In that case, there wouldn’t be new
experiences to account for this change.
2) Prussia’s canonically undergone
several title changes.
If the above rule applies, then he should have
eventually forgotten about these previous existences. That is, unless he had
access to something that could trigger his memory…
3) The nations’ memories aren’t
perfect.
Prussia openly admits to recording diaries to avoid
forgetting things.
Notice again how Hima places emphasis on the fact that Prussia’s had
several existences.
Why would he do that in a strip that revolves around memory
if it wasn’t to hint at the fact that Prussia is actively striving to maintain
memories of his past?
Ellawritesficssometimes 