Achillas served as Patriarch of Alexandria (head of the church that became the Coptic Church and the Orthodox Church of Alexandria) between 312 and 313. The Patriarch of Alexandria is the bishop of Alexandria, Egypt. ... Christ - Coptic Art Coptic Orthodox Christianity is the indigenous form of Christianity that, according to tradition, the apostle Mark established in Egypt in the middle of the 1st century AD (approximately AD 60). ... The Orthodox Church of Alexandria is one of the autocephalous Eastern Orthodox Churches. ... Events October 28 - Battle of Milvian Bridge: Constantine defeats Maxentius in the fight to become emperor of Rome. ... For other uses, see 313 (number). ...
In the discussion which followed, Dionysius, Patriarch of Alexandria, had used much the same language as Arius did later, and correspondence survives in which Pope Dionysius blames his brother of Alexandria for using such language.
Under the influence of the emperor Constantine, the assembled bishops agreed upon a creed to be used at baptisms and in catechetical instruction expressed in words that made Arius's language heretical.
When Alexander died at Alexandria in 327, the election of Athanasius in his place was secured despite his not meeting the age requirement for a bishop.