What common feature did th western roman empire and roman catholic church share

the governing of the western roman empire was broken up in dioceses, something like we in the united states would see as individual states. this system was carried over into the church. as the church was the only authority left in rome when the roman empire fell, the church took over the governance of what was left of the roman empire, and many of the characteristics of the old roman empire were carried forward into the church

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