Church of the East (Corporate Name)

The Church of the East and the Church of England, 1992: p. 4 (Church of the East: the more or less official name; the other broadly agreeable name is the Old East Syrian Church; also called the Nestorian Church, but that "is a name fiercely rejected, in fact practially tabooed in conversation, by members of the church themselves" because Nestorian is in common use among western and other eastern Christians to denote the heresy that Christ was two distinct persons rather than two natures united in one person; also Nestorius probably never came near the territory of the Church of the East, did not speak Syriac, and was unknown to that church in his lifetime)

Wikipedia, Aug. 16, 2010: (The Church of the East developed from the early Christian communities in Persia, and at its height had spread from its Mesopotamian heartland as far as China and India. In 1552 a dispute over patriarchal succession led to a schism, resulting in there being two rival Patriarchs. One of the factions that emerged from this split became the modern Assyrian Church of the East)