Question of Isolation of COE

[Mike Kar]

On the Peshitta.org forum I have come across a few statements saying that the COE was isolated from "Western Christianity" until about the 1800s where some missionaries came into contact with members who belonged to the COE. I express my question(s) in general terms but when did the process of isolation of COE begin? I also ask what were the factors that isolated the COE from the rest of the Western Churches: was it geography; culture or language or combination of the 3?

If the isolation was combination of geography, culture and language which factor was the most dominate?

Was there isolation even before the council of Ephesus in 431 AD; and, if so, can we conclude that the Council of Ephesus (431 AD) intensified the isolation? I ask this with the understanding that most of you are aware of the Ephesus Council and I know just some of the bare facts of this council and that it become just not a theological disagreement but manifested (soon afterwards) some deep wounds for all parties but mainly (I think, not sure) mostly for those who belong to the COE? Am I on the right thinking here?

Please feel free to be at liberty to answer briefly or to some greater length. Also, you can provide links and/or articles if you would.

Thank you.

Kindly,

Mike Karoules