Original sentence: Patriarchs of the Church of the East, sometimes also referred to as Nestorian, the Church of Persia, the Sassanid Church, trace their lineage of patriarchs back to the 1st century
Edited sentence: Patriarchs of the Church of the East, sometimes also referred to as Nestorian, the Church of Persia, the Sassanid Church, or, in modern times, the Assyrian Church of the East, trace their lineage of patriarchs back to the 1st century.The Catholicos-Patriarch of Seleucia-Ctesiphon, chief of the Assyrian Church of the East.The Patriarch-Catholicos of the Ancient Church of the East, a secession from the Assyrian Church of the East