MarshalBraginsky
Banned
Yeah a world without Constantinople as the key to the East for Europe would be very interesting. I would wager that the Ostrogoths or other Barbarians would set up a Barbarian State over European Byzantium while the Persians would come to dominate Asia.
With that kind of huge POD, just about anything could happen: Vandals in Egypt, Christian Arabia, and of course Zorastrian Russia.
In this case the Huns would be able to establish their own state that would potentially dominate the Balkans, barring the Avars from ever creating their khanate there, which could force Slavic tribes like the White Croats, Red Croats, and the Serbs to migrate into the Vistula region, and even possibly taking the Baltic states or migrating eastward.
Zoroastrian Russia would have an effect on the Turkic peoples as well, since they might end up converting to Zoroastrianism if they are to be accepted by the Persians. Overall, we might be able to see Persia as the 'Russia' of this scenario. We may even see the Visigoths west of the Drina or the Ostrogoths in the southern Danube.
With a Christian Arabia, Islam as we know it might be butterflied away, but Zoroastrianism could potentially become the "Islam" of this scenario, if it can be spread by trade and influence.