Change Types

The DGSD records the following change types:

Established Declares that an entity came into existence for the first time during the Song Dynasty but does not reference the territory from which it was created.
Reestablished Declares that an entity came into existence after a period during which it had been Abolished or Merged.
Name Change Declares that an entity had its official name changed.
Split Declares that an entity has been subdivided into multiple entities (As an end change) or has come into existence as the result of such a subdivision. The entity or entities related to the one in question are listed in the Target ID field.
Regained Declares that an entity rejoined Song political control through some type of international event, such as war.
Promoted Declares that an entity was moved up in rank either from town to county or from county to prefecture, or that it was moved up in prefecture rank.
Abolished Declares that an entity was removed from political existence for the first time during the Song Dynasty but does not reference demotion to another feature.
Reabolished Declares that the entity was removed from political existence after having been previously abolished and re-established during the Song Dynasty.
Merged Declares that an entity was joined with another entity and now is considered to be under the jurisdiction of an entity listed in the Target ID field.
Lost Declares that the entity was removed from political control due to some type of international event, such as war.
Demoted Declares that an entity had its political rank reduced from prefecture to county or county to town or that it was reduced to a lower prefectural rank.
Transferred Declares that an entity was placed under the jurisdiction of a new entity, indicated in the Target ID field.