Hmm. I never knew that the Maronites previously used both leavened and unleavened bread. That’s interesting. Do you have any references for that, Malphono? I’d like to read up on it.
As far as the Armenians are concerned, the others are right – “Oriental” is Christological shorthand of sorts, not a geographical term. There are native Christian churches in France and Britain which are also “Oriental”, ultimately arising out of recent missionary efforts of the Coptic Orthodox Church in those countries which resulted in natively-run churches in full communion with the other OO. If you watched the liturgy at which the new Pope was chosen last night (broadcasted live from the Cathedral of St. Mark in Cairo on Coptic TV channels Aghapy and CTV), you would have seen the French bishop (I can’t remember his name at the moment) alongside his brother bishops, reciting one line from the commemoration of the Patriarchs in his native French language (they each took a turn saying one line from this rather lengthy text, though I can’t remember which he ended up with; the melody in French sounds pretty amazing, I must say).
As I understand it, before the invention of the Armenian alphabet by St. Mesrop Mashots at the beginning of the 5th century, the Armenians worshiped in Syriac, and their liturgy still retains many affinities to that form of the liturgy (and indeed there is a rather large corpus of Armenian words that find their ultimate origin in Syriac, particularly words dealing with religious concepts). According to modern Armenian historians such as Richard G. Hovannisian, St. Mesrop had visited Edessa, center of Syriac Christianity, sometime prior to inventing the alphabet. Previous efforts to write the Armenian language had been taken by a Syrian bishop by the name of Daniel, and while his system ultimately proved unsuccessful, the fact that he would have done such a thing does point to heavy Syrian missionary activity among the Armenians at a very early stage (Armenia, you’ll remember, was the first country to officially adopt Christianity, in 301 AD – some 36 years before Constantine the Great was baptized – so I guess everything relating to Armenian Christianity could be described as occurring at very early stage

).