Polonnaruwa period
E937040
The Polonnaruwa period was a medieval era in Sri Lankan history marked by strong centralized rule, monumental Buddhist architecture, and significant developments in art, irrigation, and scholarship.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Polonnaruwa period canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11608788 — 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: Polonnaruwa period Context triple: [Ayurveda in Sri Lanka, hasHistoricalRoot, Polonnaruwa period]
-
A.
Nayaka period
The Nayaka period was a post-Vijayanagara era in South India marked by regional Nayaka rulers whose courts significantly fostered and shaped the development of Telugu literature.
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B.
Cham period
The Cham period refers to the historical era when the Cham people, an Austronesian ethnic group in central and southern Vietnam, flourished culturally and religiously, leaving a legacy of Hindu and Buddhist temples and art.
-
C.
Anuradhapura Kingdom
The Anuradhapura Kingdom was an ancient Sinhalese monarchy in Sri Lanka renowned for its early Buddhist civilization, monumental stupas, and sophisticated irrigation systems.
-
D.
Pala period
The Pala period was a major era of Buddhist cultural and artistic flourishing in eastern India (8th–12th centuries), renowned for its distinctive sculpture, painting, and monastic centers that influenced Buddhist art across Asia.
-
E.
Aravidu dynasty
The Aravidu dynasty was the last ruling family of the Vijayanagara Empire in South India, governing its remnants from the late 16th to the mid-17th century.
- 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: Polonnaruwa period Target entity description: The Polonnaruwa period was a medieval era in Sri Lankan history marked by strong centralized rule, monumental Buddhist architecture, and significant developments in art, irrigation, and scholarship.
-
A.
Nayaka period
The Nayaka period was a post-Vijayanagara era in South India marked by regional Nayaka rulers whose courts significantly fostered and shaped the development of Telugu literature.
-
B.
Cham period
The Cham period refers to the historical era when the Cham people, an Austronesian ethnic group in central and southern Vietnam, flourished culturally and religiously, leaving a legacy of Hindu and Buddhist temples and art.
-
C.
Anuradhapura Kingdom
The Anuradhapura Kingdom was an ancient Sinhalese monarchy in Sri Lanka renowned for its early Buddhist civilization, monumental stupas, and sophisticated irrigation systems.
-
D.
Pala period
The Pala period was a major era of Buddhist cultural and artistic flourishing in eastern India (8th–12th centuries), renowned for its distinctive sculpture, painting, and monastic centers that influenced Buddhist art across Asia.
-
E.
Aravidu dynasty
The Aravidu dynasty was the last ruling family of the Vijayanagara Empire in South India, governing its remnants from the late 16th to the mid-17th century.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
historical period
ⓘ
medieval era ⓘ |
| architecturalFeature |
brick and stone temples
ⓘ
image houses ⓘ rock-cut Buddha statues ⓘ stupas ⓘ |
| architecturalStyle | Sinhalese Buddhist architecture NERFINISHED ⓘ |
| country | Sri Lanka ⓘ |
| economicActivity |
irrigated agriculture
ⓘ
rice cultivation ⓘ trade in the Indian Ocean ⓘ |
| endTime | c. 1236 ⓘ |
| follows | Anuradhapura period NERFINISHED ⓘ |
| hasCapital | Polonnaruwa NERFINISHED ⓘ |
| hasCulturalHeritageSite |
Gal Vihara
NERFINISHED
ⓘ
Lankatilaka Vihara NERFINISHED ⓘ Rankoth Vehera NERFINISHED ⓘ Royal Palace of Parakramabahu I NERFINISHED ⓘ Vatadage of Polonnaruwa NERFINISHED ⓘ |
| hasMonarch |
Lilinavathi
NERFINISHED
ⓘ
Nissanka Malla NERFINISHED ⓘ Parakramabahu I NERFINISHED ⓘ Vijayabahu I NERFINISHED ⓘ |
| hasWork |
Culavamsa
NERFINISHED
ⓘ
inscriptions of Parakramabahu I NERFINISHED ⓘ |
| irrigationProject |
Parakrama Samudra
NERFINISHED
ⓘ
construction of canals ⓘ restoration of ancient tanks ⓘ |
| knownFor |
advanced irrigation systems
ⓘ
developments in art ⓘ developments in scholarship ⓘ hydraulic engineering ⓘ monumental Buddhist architecture ⓘ strong centralized rule ⓘ |
| language |
Pali
NERFINISHED
ⓘ
Sinhala ⓘ |
| locatedInTime | Middle Ages NERFINISHED ⓘ |
| namedAfter | Polonnaruwa NERFINISHED ⓘ |
| partOf | history of Sri Lanka ⓘ |
| precedes | Dambadeniya period NERFINISHED ⓘ |
| religion | Buddhism ⓘ |
| script | Sinhala script NERFINISHED ⓘ |
| significantEvent |
Chola–Sinhalese conflicts
NERFINISHED
ⓘ
construction of Parakrama Samudra ⓘ decline due to South Indian invasions ⓘ reign of Parakramabahu I ⓘ reunification of Sri Lanka under Vijayabahu I ⓘ |
| startTime | c. 1070 ⓘ |
| UNESCOWorldHeritageSite | Ancient City of Polonnaruwa NERFINISHED ⓘ |
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: Polonnaruwa period Description of subject: The Polonnaruwa period was a medieval era in Sri Lankan history marked by strong centralized rule, monumental Buddhist architecture, and significant developments in art, irrigation, and scholarship.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.