[maryz]

Good article (though it does abbreviate the sources of the schism beyond recognition!).

One thing I found interesting:

To work this out, they are studying Christianity's early history to see how the Latin-speaking West and Greek-speaking East worked together for 1,000 years before the Great Schism.

[Genoa]

Before the schism, the doctrine of papal infallibility hadn't been articulated. It's hard to imagine how the Orthodox could get past that without its being watered down beyond recognition.