Yuanhe era
E803570
The Yuanhe era was a regnal period in the early 9th century during the Tang dynasty, marked by Emperor Xianzong’s efforts to reassert central imperial authority over powerful regional warlords.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Yuanhe era canonical | 3 |
| Tianbao era | 1 |
| Yongzhen era | 1 |
| Yuanhe era (806–820) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9501592 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Yuanhe era Context triple: [Emperor Xianzong of Tang, era, Yuanhe era]
-
A.
Kaiyuan era
The Kaiyuan era was a prosperous and culturally flourishing period during the reign of Emperor Xuanzong in the High Tang dynasty of China.
-
B.
Zhenguan
Zhenguan was the reign era of Emperor Taizong of the Tang dynasty, remembered as a period of political stability, effective governance, and cultural flourishing in early imperial China.
-
C.
Yongyuan
Yongyuan was the era name used during part of Emperor Zhang's rule in the Eastern Han dynasty of ancient China.
-
D.
Sui–Tang period
The Sui–Tang period was a formative era in Chinese history (late 6th to early 10th century) marked by imperial unification, major administrative reforms, and flourishing culture that laid the foundations for later dynasties.
-
E.
Kaiyuan
Kaiyuan is a county-level city in Honghe Hani and Yi Autonomous Prefecture in Yunnan Province, southwestern China.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Yuanhe era Target entity description: The Yuanhe era was a regnal period in the early 9th century during the Tang dynasty, marked by Emperor Xianzong’s efforts to reassert central imperial authority over powerful regional warlords.
-
A.
Kaiyuan era
The Kaiyuan era was a prosperous and culturally flourishing period during the reign of Emperor Xuanzong in the High Tang dynasty of China.
-
B.
Zhenguan
Zhenguan was the reign era of Emperor Taizong of the Tang dynasty, remembered as a period of political stability, effective governance, and cultural flourishing in early imperial China.
-
C.
Yongyuan
Yongyuan was the era name used during part of Emperor Zhang's rule in the Eastern Han dynasty of ancient China.
-
D.
Sui–Tang period
The Sui–Tang period was a formative era in Chinese history (late 6th to early 10th century) marked by imperial unification, major administrative reforms, and flourishing culture that laid the foundations for later dynasties.
-
E.
Kaiyuan
Kaiyuan is a county-level city in Honghe Hani and Yi Autonomous Prefecture in Yunnan Province, southwestern China.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Chinese era name
ⓘ
regnal period ⓘ |
| associatedReforms | fiscal and military centralization measures ⓘ |
| associatedWith |
Emperor Xianzong’s military campaigns
ⓘ
reduction of jiedushi autonomy ⓘ |
| belongsToTradition | Chinese era naming system ⓘ |
| calendarSystem | lunisolar Chinese calendar ⓘ |
| capital |
Chang’an
ⓘ
linked to:
Chang'an
|
| chronologicalPosition | after Zhenyuan era and before Changqing era ⓘ |
| chronologicalUnit | era years of Emperor Xianzong’s reign ⓘ |
| chronologyWithinDynasty | post-An Lushan Rebellion period ⓘ |
| conflictType | central–regional power struggle ⓘ |
| country | Tang dynasty ⓘ |
| dynasty | Tang dynasty ⓘ |
| endYear | 820 ⓘ |
| eraNameOf | Emperor Xianzong of Tang ⓘ |
| followedBy | Changqing era ⓘ |
| follows | Zhenyuan era ⓘ |
| geographicScope | territories of the Tang dynasty ⓘ |
| governmentType | imperial monarchy ⓘ |
| hasRulerTitle |
Emperor of Tang
ⓘ
linked to:
Emperor of the Great Tang
|
| historicalRegion | East Asia ⓘ |
| historicalSignificance | temporary revival of Tang central power ⓘ |
| language | Classical Chinese ⓘ |
| locatedInTimePeriod | Middle Tang period ⓘ |
| monarch | Emperor Xianzong of Tang ⓘ |
| namedBy | Emperor Xianzong of Tang ⓘ |
| notableFor |
campaigns against regional warlords
ⓘ
reassertion of central imperial authority ⓘ strengthening of central government ⓘ |
| partOf | history of the Tang dynasty ⓘ |
| politicalContext | conflict between central court and regional military governors ⓘ |
| precededBy | Zhenyuan era ⓘ |
| reignOf | Emperor Xianzong of Tang ⓘ |
| religionContext | state support for Buddhism and Daoism ⓘ |
| sovereignState | China ⓘ |
| startCentury | 9th century ⓘ |
| startYear | 806 ⓘ |
| typeOfEvent | political era ⓘ |
| usedFor |
dating historical records
ⓘ
dating official documents ⓘ |
| usedIn | Chinese imperial calendar ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Yuanhe era Description of subject: The Yuanhe era was a regnal period in the early 9th century during the Tang dynasty, marked by Emperor Xianzong’s efforts to reassert central imperial authority over powerful regional warlords.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Yuanhe era
linked to: Yuanhe era