alternatehistory.com

In simplistic terms Christianity spread throughout Europe and is currently followed by two billion people because of the support it received from the Roman Empire.

Could a different monotheistic religion gain the support of an Emperor and the majority of the population and then survive as the majority religion of Europe after the fall of the empire? something like Manichaeism, Cults of Mithras or Sol Invictus, or could the worship of the traditional twelve Olympian gods strengthen and survive in some form?

What would be the major cultural changes from this?
Top