When did the East and the West start going their separate ways on remarriage?

[mmmcounts]

The East and the West teach slightly different things on marriage and remarriage, especially as it relates to the role of a bishop and the extent to which he's bound to the letter of the law. When did they start going their separate ways on this? More specifically, how far back can we go and find evidence that Eastern bishops were applying the practice of οικονόμια to divorce and remarriage and that people went through this process without getting an annulment?

Is this a post-Schism thing, or is it a pre-Schism thing?

 

[GreekOrthodox]

I wish I could be more of help here on this but unfortunately I dont know. I'm going to guess that it is post-schism because of the approach on annulment (RCC) vs ecclesiastical divorce (EO).

Brian