Mercedonius
E531233
Mercedonius was an occasional leap month in the early Roman calendar, inserted to realign the lunar-based year with the solar cycle.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mercedonius canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5534073 — 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: Mercedonius Context triple: [Roman calendar, intercalaryMonthName, Mercedonius]
-
A.
King Sextimus
King Sextimus is a central comic character in the musical "Once Upon a Mattress," portrayed as a king under a curse that renders him mute, leading to much of his humor and authority being expressed through pantomime.
-
B.
Saturninus
Saturninus is a character in Shakespeare's tragedy "Titus Andronicus," depicted as the scheming and vengeful Roman emperor whose actions drive much of the play's brutal conflict.
-
C.
Martin Ilacomilus
Martin Ilacomilus is an alternative name for Martin Waldseemüller, the early 16th-century German cartographer credited with first using the name "America" on a world map.
-
D.
Rex Siciliae
Rex Siciliae was the medieval Latin title used for the King of Sicily, a significant monarchic office in Southern Italy and the central Mediterranean.
-
E.
Julian
Julian is a masculine given name of Latin origin, commonly used in many English-speaking and European countries.
- 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: Mercedonius Target entity description: Mercedonius was an occasional leap month in the early Roman calendar, inserted to realign the lunar-based year with the solar cycle.
-
A.
King Sextimus
King Sextimus is a central comic character in the musical "Once Upon a Mattress," portrayed as a king under a curse that renders him mute, leading to much of his humor and authority being expressed through pantomime.
-
B.
Saturninus
Saturninus is a character in Shakespeare's tragedy "Titus Andronicus," depicted as the scheming and vengeful Roman emperor whose actions drive much of the play's brutal conflict.
-
C.
Martin Ilacomilus
Martin Ilacomilus is an alternative name for Martin Waldseemüller, the early 16th-century German cartographer credited with first using the name "America" on a world map.
-
D.
Rex Siciliae
Rex Siciliae was the medieval Latin title used for the King of Sicily, a significant monarchic office in Southern Italy and the central Mediterranean.
-
E.
Julian
Julian is a masculine given name of Latin origin, commonly used in many English-speaking and European countries.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
intercalary month
ⓘ
month in the Roman calendar ⓘ |
| abolishedBy | Julian calendar ⓘ |
| associatedWith | Numa Pompilius ⓘ |
| basedOn | lunar phases ⓘ |
| calendarRole | intercalation to approximate 365-day solar year ⓘ |
| calendarType | lunisolar calendar ⓘ |
| category |
Ancient Roman religion
ⓘ
Roman timekeeping ⓘ |
| controlledBy |
Pontifex Maximus
ⓘ
linked to:
pontifex maximus
|
| culturalContext | Roman religion and festival cycle ⓘ |
| effectOnYearLength | extended the Roman year beyond 355 days ⓘ |
| etymology | possibly derived from Latin "merces" (wages or payment) ⓘ |
| followedBy | March ⓘ |
| frequency | occasionally inserted ⓘ |
| function |
correct drift of the Roman calendar
ⓘ
realign lunar year with solar year ⓘ |
| introducedBy |
Roman pontiffs
ⓘ
linked to:
Pope
|
| languageOfName | Latin ⓘ |
| length |
approximately 27 days in some reconstructions
ⓘ
sometimes reconstructed as 22 or 23 days ⓘ |
| mentionedBy |
Censorinus
ⓘ
Macrobius ⓘ |
| politicalAspect | intercalation could be manipulated for political advantage ⓘ |
| positionInYear |
inserted after 23 February in some reconstructions
ⓘ
inserted between February and March ⓘ |
| precededBy | February ⓘ |
| purpose |
keep Roman festivals in correct season
ⓘ
synchronize civic calendar with agricultural year ⓘ |
| relatedTo |
Roman Republican calendar
ⓘ
linked to:
Roman calendar
|
| replacedBy |
Julian calendar reform
ⓘ
linked to:
Julian calendar
|
| standardYearContext | Roman 355-day common year ⓘ |
| status | obsolete ⓘ |
| timePeriod | Roman Republic ⓘ |
| uncertainty |
exact length is debated among scholars
ⓘ
exact rules of insertion are not securely known ⓘ |
| usedIn | early Roman calendar ⓘ |
| usedUntil | 46 BC (introduction of Julian 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: Mercedonius Description of subject: Mercedonius was an occasional leap month in the early Roman calendar, inserted to realign the lunar-based year with the solar cycle.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.