The roman catholic and the eastern orthodox churches split due to people having different opinions (what they believed in) in other words the greek orthodox church was made to sever all ties,thus the reason the churches split.
City-states came first , hope thats helps :)
Answer:
Neil Armstrong landed on the moon in 1969 for the first time ever
The correct answer to this open question is the following.
Do you consider Bishop Eusebius’s account to be reliable?
No, really not.
The reason why because his account had created many controversies.
Eusebius has been known as the official historian of the church. He participated in the Council of Nice in 314, organized by Roman Emperor Constantine to revise the religious or historic documents that would end up being in the Bible.
So Eusebius based most of his comments on personal opinions and other historic document's interpretations. It is difficult to say that he did the proper research and had reliable sources. During the Nicea Council, a group of Bishops decided what documents had to be part of the Bible and which not, based on their own criteria. That is not a good indicator of the validity of the documents included, even less we can consider those as sacred.