alternatehistory.com

The basis for the christian focus point in Rome bases off the fact that Rome simply was the most important city in the world at that time ... so ... how to get the Christian focus to move to the city which at whichever point in time were the most important city in THE major nation in the christian world (say moving to Constatinoble in the Dark ages and later to Paris and London ... would probably later on after the tradition is established be cause for some issues between empires)

Is this even possible?
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