[The_Reader_David]

And, equally, for the first 1000 years all Christians were Orthodox (except the ones I wouldn't call Orthodox, and you wouldn't call Catholic either--Arians, pneumatomachians, monophysites, Nestorians, Montanists, Paulicans, . . .).

[NYer]

And, equally, for the first 1000 years all Christians were Orthodox

Precisely! (I wasn't quite sure how to phrase that but you succeeded :-). Thank you!