[quote=@Letter Bee]
<Snipped quote by Dinh AaronMk>

Any other way of giving the Republican Empire the imperfect knowledge of the old days needed to form their nation, then?
[/quote]

You wouldn't really need any knowledge of the old world to form a republic, tbh. If anything, where a feudal state may be said to be when an individual acquires so much material power he can influence or subjugate others to form his dynastic state, the process of a Republic is when a collection of people acquire material wealth giving them power, but not enough to really over-power one or the other; and so might confederate to form a Republic among themselves.

Otherwise, it may be little more than survivors trying to form a semblance of normalcy by re-establishing what was lost to manage their stuff. They wouldn't have to know how the Republic of Rome or anyone went about it. The Romans themselves didn't really have a book about how to set up their Republic, and they themselves were a vague silhouette of a Republic to the American Founding Fathers who only had vague notions of what they were doing.