ahem... so we are, I think about the time of Constantine... Several hundred years A.D.
Constantine had established a new eastern capital called Constantinople...
Constantine was the first Roman Emperor to convert to Christianity
lol... I'm doing a horrible job here... but I"ll go on
at this time, the Roman empire was being ruled by more than one emperor at once...
this resulted into an East and West administrative division between the Western and Eastern Roman Empires