In all our Liturgies, we recite or sing the Creed before the beginning of the Eucharist proper. But the form of the Creed varies among our traditions. For the most part, the Copts (and Ethiopians?) seem to keep the original Creed as formulated at Nicaea and Constantinople, while the Syrians (and Indians) have a slightly different wording in two or three different places (e.g., "was incarnate of the Holy Spirit and the Virgin Mary Mother of God", "rose from the dead according to his will", "and in the Holy Spirit...who spoke through the prophets and the apostles").
But the Armenians use a version with a number of interpolations, which I can't remember right now. I am quite fond of a lot of the prayers in their Liturgy, particularly in the anaphora and in the prayer before the Our Father, and this form of the Creed is no exception (and they kept the anathema in!). But it seems unique in our tradition, and seems like it's trying to cover the bases on a number of theological issues that may (?) have come up in Armenian history. Where can I read more about the history of this form of the Creed? Or do any of the learned members here know?