Abstract
Egypt became one of the first countries in the world to adopt early Christianity and to grow and strengthen early Christian communities. The ancestor of the Herald of Christ is generally considered to be the saint Mark, who was to become the first bishop of Alexandria.
In addition to the Nile Cross of Life, which was used in ancient Egypt, an isosceles Christian cross (of the Jerusalem and Greek type) entered the lower Nile region. Before the expansion of Islam, Egypt was a Christian country where creative theological thought flourished: in Alexandria in the first centuries AD a very important catechetical school was established, which (simply put) emphasized the deity of Jesus (the so-called logos-sarx school) in opposition to the Antioch catechetical school emphasizing the full humanity of Jesus (so-called logos - anthropos).
Another layer of the symbol was added to the Nile cross of life, so that later the two crosses merged into the so-called Coptic cross.