Of the major branches, only those derived from Catholic/Orthodox sects (including Protestants) are those which evolved inside the Empire.
Those derived from the Nestorian and Oriental Orthodox Churches evolved in the Caucasus and Mesopotamia, in regions outside of Rome’s control or where its control was marginal, and in Ethiopia.
I looked up those, on Wikipedia, because I don’t know much, and they both evolved after 300, and seem to be evolved from ideas that grew inside the empire before then.
I would be interested in finding sects that started before the year 200 that were founded outside of Roman controlled areas. I am sure there are but would need a name to look up
There is a reason the only branches of Christianity to survive were those not trying to break away from Rome.
But numerous non-Roman branches of Christianity survived?
Christians used Rome as a tool against their enemies much more than the reverse.
I don’t know, I always assumed the later branches evolved from the ones that survived inside empire the first 200 years. I could be wrong ?
Edit phrase
Of the major branches, only those derived from Catholic/Orthodox sects (including Protestants) are those which evolved inside the Empire.
Those derived from the Nestorian and Oriental Orthodox Churches evolved in the Caucasus and Mesopotamia, in regions outside of Rome’s control or where its control was marginal, and in Ethiopia.
I looked up those, on Wikipedia, because I don’t know much, and they both evolved after 300, and seem to be evolved from ideas that grew inside the empire before then.
I would be interested in finding sects that started before the year 200 that were founded outside of Roman controlled areas. I am sure there are but would need a name to look up