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.
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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.