Considering that an anticipated wave of invasions could have make collapse the Roman Empire in the mid-3rd century (when Rome was just declining) before the Diocletian reformation, what could have happened in this scenario?
Thoughts:
- As Rome was still not divided, an eventual collapse would hit all the Empire, because there was still only one Emperor, only one capital city etc. IOTL the later division much saved the ERE to be affected because of the collapse of the WRE, but in this scenario this is more unlikely.
- Christianity could have had more difficults in spreading across the Empire if this collapse earlier and ERE is not preserved. Probably the invaders would not adopt this religion, as it was neither official nor widespread then, so it could be more difficult for Christians to reach the power.
- Constantinople would be probably not built.
- Sassanid Persia would probably extend further to Syria, Egypt etc.
- The risk of losing most of the Classical literature, knowledge etc. if the Church can't preserve them.
Thoughts:
- As Rome was still not divided, an eventual collapse would hit all the Empire, because there was still only one Emperor, only one capital city etc. IOTL the later division much saved the ERE to be affected because of the collapse of the WRE, but in this scenario this is more unlikely.
- Christianity could have had more difficults in spreading across the Empire if this collapse earlier and ERE is not preserved. Probably the invaders would not adopt this religion, as it was neither official nor widespread then, so it could be more difficult for Christians to reach the power.
- Constantinople would be probably not built.
- Sassanid Persia would probably extend further to Syria, Egypt etc.
- The risk of losing most of the Classical literature, knowledge etc. if the Church can't preserve them.