In the [[Roman Catholic]], [[Eastern Orthodox]], [[Anglican]], and some other Christian churches, a "''Diocese''" is the term used for a cluster of parishes--usually organized geographically--that is overseen by a [[bishop]]. This form of church government (or "polity") dates from the early [[church]] era. Both the word itself and the concept of a regional administrative subdivision were derived from the Roman Empire's hierarchy of political units.
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In the [[Roman Catholic]], [[Eastern Orthodox]], [[Anglican]], and some other Christian churches, '''''Diocese''''' is the term used for a cluster of parishes--usually organized geographically--that is overseen by a [[bishop]]. The number of parishes in a diocese can range from several to fifty or more, depending upon denomination. This form of organization dates from the Early Church era. Both the word itself and the concept of a regional administrative unit were derived from the Roman Empire's hierarchy of political subdivisions.