User blog comment:Jazon Naparleon/Questions of Romans and Mongols/@comment-4727448-20120815054104

I: Not really. Temujin regarded him as dead anywho.

II: Absolutely.

III: Probably not.

IV: Without Christianity to face, for a while the Pagan Rome would have last much, much longer, into the 1000s probably, but then start facing a new minority religion.