We know that Prussia’s been diligently recording diary
entries ever since his birth, taking note of his moments of “awesomeness.”

We also know that the nations’ memories aren’t limitless, as
they don’t remember everything.

Now, what would you say if I told you that Prussia’s diaries
are purposed to prevent him from forgetting his past lives?

Roughly speaking, he started out as St. Maria’s order,
became the Teutonic Knights, somehow evolved into Prussia, and is now
presumably – and obviously – East Germany.

But, there’s one particular strip that hints at and makes me
believe that the nations lose their memories from past personifications.

If it’s possible for them to adopt new personalities upon
acquiring a new title or land, then wouldn’t it follow that they also lose all
memories from their past personifications?

Your personality is very much grounded in your interactions
and experiences in the world, so to possess a new one would imply that you have
new experiences to shape who you are. It would also imply that your old
experiences have had little impact on your character; either they’re discarded
or repressed from your conscious memory.

Here’s where things get cryptic. Assuming that Holy Rome is
Germany’s past personification, this means that Hima has an active motif of
memories present, one that covertly threads the German brothers’ storylines together.

On one hand, you have Prussia, brother #1, who records
memories from previous personifications to maintain and keep his “awesome”
sense of self consistent.

On the other hand, you have Germany, brother #2, who has
possibly had a past life, but is unable to recall it.