And one in particular started to create a debate. There was a priest in Alexandria, which is one of the major cities of the Roman Empire. Now remember, by this point, Rome, of course, is one of the most significant, if not the most significant city. Now, Constantine sets up a capital at Byzantium, which will eventually be known as Constantinople. And Alexandria, which was originally founded by Alexander the Great, is also one of the significant cities of the Empire. And in Alexandria, there is a Christian priest by the name of Arius, who has a view on Christ that becomes a bit of a controversy. And to understand that, here is an account of his writings or his beliefs.