Calendarium
E541458
Calendarium is an influential 15th-century astronomical and calendrical work by the German mathematician and astronomer Regiomontanus, used for improving the accuracy of calendars and predicting celestial events.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Calendarium canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5685957 — 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: Calendarium Context triple: [Regiomontanus, notableWork, Calendarium]
-
A.
The Calendar
"The Calendar" is a crime thriller play by Edgar Wallace that blends mystery and melodrama around horse racing and high society intrigue.
-
B.
Naver Calendar
Naver Calendar is a scheduling and time-management service by Naver that lets users create, organize, and sync events across devices and other Naver services.
-
C.
Calendar Round
The Calendar Round is a Mesoamerican cyclical dating system that combines a 260-day ritual calendar with a 365-day solar calendar to produce repeating 52-year periods.
-
D.
Festival of Holidays
Festival of Holidays is a seasonal celebration at Disney California Adventure Park featuring multicultural holiday entertainment, food, and festivities inspired by diverse winter traditions.
-
E.
Badíʻ calendar
The Badíʻ calendar is the unique solar calendar of the Bahá'í Faith, structured around 19 months of 19 days each and anchored by Bahá'í holy days and astronomical events like the vernal equinox.
- 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: Calendarium Target entity description: Calendarium is an influential 15th-century astronomical and calendrical work by the German mathematician and astronomer Regiomontanus, used for improving the accuracy of calendars and predicting celestial events.
-
A.
The Calendar
"The Calendar" is a crime thriller play by Edgar Wallace that blends mystery and melodrama around horse racing and high society intrigue.
-
B.
Naver Calendar
Naver Calendar is a scheduling and time-management service by Naver that lets users create, organize, and sync events across devices and other Naver services.
-
C.
Calendar Round
The Calendar Round is a Mesoamerican cyclical dating system that combines a 260-day ritual calendar with a 365-day solar calendar to produce repeating 52-year periods.
-
D.
Festival of Holidays
Festival of Holidays is a seasonal celebration at Disney California Adventure Park featuring multicultural holiday entertainment, food, and festivities inspired by diverse winter traditions.
-
E.
Badíʻ calendar
The Badíʻ calendar is the unique solar calendar of the Bahá'í Faith, structured around 19 months of 19 days each and anchored by Bahá'í holy days and astronomical events like the vernal equinox.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
15th-century book
ⓘ
astronomical work ⓘ calendrical work ⓘ |
| approximatePublicationDate | 1470s ⓘ |
| associatedWith |
European astronomical tradition
ⓘ
pre-Gregorian calendar reform ⓘ |
| author | Regiomontanus NERFINISHED ⓘ |
| authorName | Johannes Müller von Königsberg NERFINISHED ⓘ |
| countryOfOrigin | Holy Roman Empire ⓘ |
| creatorOccupation |
astronomer
ⓘ
mathematician ⓘ |
| field |
astronomy
ⓘ
chronology ⓘ mathematics ⓘ |
| genre |
scientific treatise
ⓘ
technical manual ⓘ |
| hasImpactOn |
development of more accurate calendars
ⓘ
methods of astronomical prediction ⓘ |
| hasPart |
calendar tables
ⓘ
eclipse prediction tables ⓘ instructions for astronomical calculation ⓘ tables of planetary positions ⓘ |
| historicalPeriod | Renaissance NERFINISHED ⓘ |
| influenced |
Renaissance astronomy
ⓘ
later calendar reform efforts ⓘ |
| intendedAudience |
astrologers
ⓘ
astronomers ⓘ mathematicians ⓘ |
| language | Latin ⓘ |
| mainSubject |
calendar computation
ⓘ
celestial prediction ⓘ ephemerides ⓘ |
| notableFor |
influence on later ephemerides
ⓘ
precision of astronomical tables for its time ⓘ |
| placeOfActivityOfAuthor |
Nuremberg
NERFINISHED
ⓘ
Vienna NERFINISHED ⓘ |
| publicationCentury | 15th century ⓘ |
| timePeriodDescribed | late Middle Ages ⓘ |
| usedFor |
astrological calculations
ⓘ
computing feast days ⓘ improving the accuracy of calendars ⓘ predicting celestial events ⓘ |
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: Calendarium Description of subject: Calendarium is an influential 15th-century astronomical and calendrical work by the German mathematician and astronomer Regiomontanus, used for improving the accuracy of calendars and predicting celestial events.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.