alternatehistory.com

What if the Western Roman Empire maintains control over the Germanics as they move in, breaking apart their tribal identities by scattering their settlement and integrating them into the empire like so many generations before them did and in the 500s, the Eastern Roman Empire fails to stop Slavic encroachment and the empire collapses into numerous Slavic ruled domains from Greece all of the way to Egypt. Constantinople can possibly remain a Greek ruled city-state.

For the next thousand years, the Western Roman Empire continues in one form or another while the Eastern Roman Empire is lost and forgotten, with the various new Slavic kingdoms of the region incorporating Roman-Greek culture into their lives and slowly reaching some sort of new culture between the regional characteristics of these specific former Romans and their own Slavic culture.

  1. Could the Western Roman Empire hold their existing borders for so long?
  2. What would the "Dark Ages" look like with a surviving Western Rome and a fallen east?
  3. What would these Slavic kingdoms with heavy Greek and Roman cultural influences look like?
  4. How would Persia react to this?
  5. Could one of the Slavic kingdoms grow to stand opposed to Persia?
  6. Would a Holy Roman Empire equivalent rise in the east for this purpose?
  7. Would the Islamic Empire, or a similar new religious movement, rise from Arabia under these circumstances and, if not, why not?

Thanks for anybody who can answer any or all of these questions.
Top