Coptic Orthodox Church of Alexandria in the context of "Suffragan see"

The Ethiopian Orthodox Tewahedo Church (Amharic: የኢትዮጵያ ኦርቶዶክስ ተዋሕዶ ቤተ ክርስቲያን, romanized: Yä-ityopp'ya ortodoks täwahədo betä krəstiyan) is the largest of the Oriental Orthodox Churches. One of the few Christian churches in Africa originating before European colonization of the continent, the Ethiopian Orthodox Tewahedo Church dates back to the Christianization of the Kingdom of Aksum in 330, and has between 38 million and 46 million adherents in Ethiopia. The Ethiopian Orthodox Tewahedo Church claims 60 million members worldwide. It is a founding member of the World Council of Churches. The Ethiopian Orthodox Tewahedo Church is in communion with the other Oriental Orthodox churches (the Eritrean Orthodox Tewahedo Church, the Coptic Orthodox Church of Alexandria, the Malankara Orthodox Syrian Church, the Armenian Apostolic Church, and the Syriac Orthodox Church).

The Ethiopian Orthodox Tewahedo Church had been administratively part of the Coptic Orthodox Church of Alexandria from the first half of the 4th century until 1959, when it was granted autocephaly with its own patriarch by Pope Cyril VI of Alexandria, Pope of the Coptic Orthodox Church.

John Chrysostom (/ˈkrɪsəstəm, krɪˈsɒstəm/; Greek: Ἰωάννης ὁ Χρυσόστομος, Latin: Ioannes Chrysostomus; c. 347 – 14 September 407) was an important Church Father who served as Archbishop of Constantinople. He is known for his preaching and public speaking, his denunciation of abuse of authority by both ecclesiastical and political leaders, his Divine Liturgy of Saint John Chrysostom, and his ascetic sensibilities. He was also the author of Adversus Judaeos and was strongly against Judaism. The epithet Χρυσόστομος (Chrysostomos, anglicized as Chrysostom) means "golden-mouthed" in Greek and denotes his celebrated eloquence. Chrysostom was among the most prolific authors in the early Christian Church.

He is honored as a saint in the Eastern Orthodox, Oriental Orthodox, Catholic, Anglican, and Lutheran churches, as well as in some others. The Eastern Orthodox, together with the Byzantine Catholics, hold him in special regard as one of the Three Holy Hierarchs (alongside Basil of Caesarea and Gregory of Nazianzus). Along with them and Athanasius of Alexandria he is also regarded as one of the four Great Greek Church Fathers. The feast days of John Chrysostom in the Eastern Orthodox Church are 14 September, 13 November and 27 January. In the Catholic Church, he is recognised as a Doctor of the Church. Because the date of his death is occupied by the feast of the Exaltation of the Holy Cross (14 September), the General Roman Calendar celebrates him since 1970 on the previous day, 13 September; from the 13th century to 1969 it did so on 27 January, the anniversary of the translation of his body to Constantinople. Of other Western churches, including Anglican provinces and Lutheran churches, some commemorate him on 13 September, others on 27 January. John Chrysostom is honored on the calendars of the Church of England and the Episcopal Church on 13 September. The Coptic Church also recognizes him as a saint (with feast days on 16 Thout and 17 Hathor).

The Era of the Martyrs (Latin: anno martyrum), also known as the Diocletian era (Latin: anno Diocletiani), is a method of numbering years based on the reign of Roman Emperor Diocletian who instigated the last major persecution against Christians in the Empire. It was used by the Church of Alexandria beginning in the 4th century AD and it has been used by the Coptic Orthodox Church of Alexandria from the 5th century until the present. This era was used to number the year in Easter tables produced by the Church of Alexandria.

Diocletian began his reign on 20 November 284 AD, and the reference epoch (day one of the Diocletian era) was assigned to be the first day of that Alexandrian year, 1 Thoth, the Egyptian New Year, or 29 August 284 AD.

The Ethiopian calendar (Amharic: ዐውደ ወር; Ge'ez: ዐውደ ወርኅ; Tigrinya: ዓዉደ ኣዋርሕ), or Geʽez calendar (Geʽez: ዐውደ ወርኅ; Tigrinya: ዓዉደ ኣዋርሕ, Amharic: የኢትዮጲያ ዘመን አቆጣጠር) is the official state civil calendar of Ethiopia and serves as an unofficial customary cultural calendar in Eritrea, and among Ethiopians and Eritreans in the diaspora. It is also an ecclesiastical calendar for Ethiopian Christians and Eritrean Christians belonging to the Orthodox Tewahedo Churches (Ethiopian Orthodox Tewahedo Church and Eritrean Orthodox Tewahedo Church), Eastern Catholic Churches (Eritrean Catholic Church and Ethiopian Catholic Church), and Protestant Christian P'ent'ay (Ethiopian-Eritrean Evangelical) Churches. The Ethiopian calendar is a solar calendar that has much in common with the Coptic calendar of the Coptic Orthodox Church of Alexandria and Coptic Catholic Church, but like the Julian calendar, it adds a leap day every four years without exception, and begins the year on 11 or 12th of September in the Gregorian calendar (from 1900 to 2099). Its epoch (first day of first year) equates to 29 August 8 AD. The neighbouring Coptic calendar is very similar to the Ethiopian calendar, except that it has a different epoch (29 August, 284 AD) and different names for the days of the week and months of the year.

The Ethiopian calendar has twelve months, all thirty days long, and five or six epagomenal days, which form a thirteenth month. The Ethiopian months begin on the same days as those of the Coptic calendar, but their names are in Geʽez. A sixth epagomenal day is added every four years, without exception, on 29 August of the Julian calendar, six months before the corresponding Julian leap day. Thus, the first day of the Ethiopian calendar year, 1 Mäskäräm, for years between 1900 and 2099 (inclusive), is usually 11 September (Gregorian). It falls on 12 September in years before the Gregorian leap year, however.

Nobatia /noʊˈbeɪʃə/ or Nobadia (/noʊˈbeɪdiə/; Greek: Νοβαδία, Nobadia; Old Nubian: ⲙⲓⲅⲛ̅ Migin or ⲙⲓⲅⲓⲧⲛ︦ ⲅⲟⲩⲗ, Migitin Goul lit. "of Nobadia's land") was a late antique kingdom in Lower Nubia, modern day southern Egypt. Together with the two other Coptic-Nubian kingdoms, Makuria and Alodia, it succeeded the kingdom of Kush. After its establishment in around 400, Nobadia gradually expanded by defeating the Blemmyes in the north and incorporating the territory between the second and third Nile cataract in the south. In 543, it converted to Coptic Christianity. It would then be annexed by Makuria, under unknown circumstances, during the 7th century.

Saint Mark's Coptic Orthodox Cathedral is a Coptic church in Alexandria, Egypt. It is the historical seat of the Pope of Alexandria, the head of the Coptic Orthodox Church.

Believed to stand on the site of a church founded in AD 42 by Mark the Evangelist, in AD 311 a chapel was recorded here, containing bodies said to be of Mark and his successors. Enlarged in the days of Pope Achillas, the church was ruined in 641 when the Arabs invaded Egypt, but was rebuilt in 680 by Pope John III of Alexandria. In 828, most of the body of Saint Mark was stolen and removed to Venice, with only the head remaining in Alexandria.

A religious habit is a distinctive set of clothing worn by members of a religious order. Traditionally, some plain garb recognizable as a religious habit has also been worn by those leading the religious eremitic and anchoritic life, although in their case without conformity to a particular uniform style.

Uniformity and distinctiveness by order often evolved and changed over time. Interpretation of terms for clothes in religious rules could change over centuries. Furthermore, every time new communities gained importance in a cultural area the need for visual separation increased for new as well as old communities. Thus, modern habits are rooted in historic forms, but do not necessarily resemble them in cut, color, material, detail or use.

Hermopolis (or Hermopolis Magna) was a major city in antiquity, located near the boundary between Lower and Upper Egypt. Its Egyptian name Khemenu derives from the eight deities (the Ogdoad) said to reside in the city.

A provincial capital since the Old Kingdom of Egypt, Hermopolis developed into a major city of Roman Egypt, and an early Christian center from the third century. It was abandoned after the Muslim conquest of Egypt but was restored as both a Latin Catholic (meanwhile suppressed) and a Coptic Orthodox titular see.