The Nicene Creed, which is recited in all churches throughout the world, has been authored by one of its favorite sons, Saint Athanasius, the Pope of Alexandria for 46 years, from 327 A. From the beginning, it played a central role in Christian theology---and especially to protect it from the Gnostics heresies.
The Coptic Church produced thousands of texts, biblical and theological studies which are important resources for archeology.
The Holy Bible was translated to the Coptic language in the second century.
Hundreds of scribes used to write copies of the Bible and other liturgical and theological books.
Many of these monasteries are still flourishing and have new vocations till this day.
This leading role, however, did not fare well when politics started to intermingle with Church affairs.
It all started when the Emperor Marcianus interfered with matters of faith in the Church.
Another saint from the Theban Legion is Saint Victor, known among Copts as "Boktor".
Under the authority of the Eastern Roman Empire of Constantinople (as opposed to the western empire of Rome), the Patriarchs and Popes of Alexandria played leading roles in Christian theology.
Isaiah the prophet, in Chapter 19, Verse 19 says Although fully integrated into the body of the modern Egyptian nation, the Copts have survived as a strong religious entity who pride themselves on their contribution to the Christian world. This status is well deserved, after all, Egypt was the refuge that the Holy Family sought in its flight from Judea: "When he arose, he took the young Child and His mother by night and departed for Egypt, and was there until the death of Herod, that it might be fulfilled which was spoken by the Lord through the prophet, saying, "Out of Egypt I called My Son" [Mathew -23].