Echo of the Great Schism
The Great Schism 1054-1098 in Antioch: After Peter III, the patriarchs John VI Familianus, Theodosius II, Phoenician, and John assumed the patriarchal throne.
Arius and Arianism
The Church of Alexandria: Persecution disturbed the peace of the Church in Alexandria. In the year 306, Peter, its bishop, wrote a treatise on how to accept deniers, but he opposed him
First Ecumenical Council - First Council of Nicaea
Call to convene a council: (325) Constantine called on all bishops from all parts of the empire to consult and exchange opinions. Determine the meeting place