Coptic language; Coptic language - Dialects; Coptic language - Sahidic dialect; Phonology; Morphology; Nile River; Orthography and spelling; Linguistics; Migration and diversity
Roman Catholic Church; Rome; Istanbul (Turkey); Schism, Acacian, 484-519; Alexandria (Egypt); Timothy Aelurus, Patriarch of Alexandria, d. 477; Theology; Politics; Patriarchs and patriarchate; Coptic Church; Copts; Roman Empire; Excommunication