Mesoamerican Long Count calendar
E160464
The Mesoamerican Long Count calendar is an ancient Mesoamerican timekeeping system that tracks days in a linear count from a mythological starting point, most famously used by the Maya and other regional civilizations.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Maya Long Count calendar | 5 |
| Mesoamerican Long Count | 1 |
| Mesoamerican Long Count calendar canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1396790 — 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: Mesoamerican Long Count calendar Context triple: [Toltec civilization, usedCalendar, Mesoamerican Long Count calendar]
-
A.
Tzolkʼin calendar
The Tzolkʼin calendar is a 260-day sacred ritual calendar of the ancient Maya used for divination, ceremonial events, and structuring religious life.
-
B.
Maya numerals
Maya numerals are a vigesimal (base-20) numeral system developed by the ancient Maya, notable for its use of dots and bars and an early concept of zero.
-
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.
Piedra del Sol
Piedra del Sol is a monumental Aztec basalt sculpture, often called the Aztec Sun Stone, renowned for its intricate calendrical and cosmological carvings.
-
E.
calmecac
Calmecac was an elite Aztec school where children of nobles were rigorously trained in religion, governance, warfare, and high culture to become future leaders and priests.
- 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: Mesoamerican Long Count calendar Target entity description: The Mesoamerican Long Count calendar is an ancient Mesoamerican timekeeping system that tracks days in a linear count from a mythological starting point, most famously used by the Maya and other regional civilizations.
-
A.
Tzolkʼin calendar
The Tzolkʼin calendar is a 260-day sacred ritual calendar of the ancient Maya used for divination, ceremonial events, and structuring religious life.
-
B.
Maya numerals
Maya numerals are a vigesimal (base-20) numeral system developed by the ancient Maya, notable for its use of dots and bars and an early concept of zero.
-
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.
Piedra del Sol
Piedra del Sol is a monumental Aztec basalt sculpture, often called the Aztec Sun Stone, renowned for its intricate calendrical and cosmological carvings.
-
E.
calmecac
Calmecac was an elite Aztec school where children of nobles were rigorously trained in religion, governance, warfare, and high culture to become future leaders and priests.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Maya calendar
ⓘ
Mesoamerican calendar ⓘ calendar system ⓘ |
| associatedWith |
Haabʼ
ⓘ
surface form:
Haabʼ calendar
Calendar Round ⓘ
surface form:
Maya calendar round
Tzolkʼin calendar ⓘ |
| base | 20 ⓘ |
| continuity | extends beyond 13 bʼakʼtun in Maya inscriptions ⓘ |
| correlationConstant | GMT 584283 ⓘ |
| culturalSignificance | used to anchor mythological and historical events ⓘ |
| earliestKnownUse | Late Preclassic period ⓘ |
| earliestLongCountDateApproxGregorian | 32 BCE (GMT correlation) ⓘ |
| earliestLongCountDateOnMonument | 7.16.6.16.18 ⓘ |
| earliestMonumentWithLongCount |
Tres Zapotes
ⓘ
surface form:
Stela C at Tres Zapotes
|
| function |
dating monuments and inscriptions
ⓘ
recording historical dates ⓘ tracking elapsed time from creation date ⓘ |
| hasMythologicalStartDate | 13.0.0.0.0 4 Ajaw 8 Kumkʼu ⓘ |
| hasUnit |
bʼakʼtun
ⓘ
kʼatun ⓘ kʼin ⓘ tun ⓘ winal ⓘ |
| misinterpretation | incorrectly associated with doomsday predictions in 2012 ⓘ |
| modifiedBase | 18 in second position (tun) for 360-day year ⓘ |
| mythologicalStartDateInGregorian | 3114-08-11 BCE (proleptic Gregorian, GMT correlation) ⓘ |
| mythologicalStartDateInJulian | 3114-08-13 BCE (Julian, GMT correlation) ⓘ |
| notation | vigesimal positional ⓘ |
| popularCultureEvent | 2012-12-21 CE interpreted as end of 13th bʼakʼtun ⓘ |
| primaryRegion |
Chiapas
ⓘ
Mesoamerica ⓘ Veracruz ⓘ highland Guatemala ⓘ Maya lowlands ⓘ
surface form:
southern Maya lowlands
|
| smallestUnit | kʼin ⓘ |
| smallestUnitLength | 1 day ⓘ |
| timeScale |
days
ⓘ
linear day count ⓘ |
| typicalNotationFormat | bʼakʼtun.kʼatun.tun.winal.kʼin ⓘ |
| unitLength |
1 bʼakʼtun = 20 kʼatun = 144,000 days
ⓘ
1 kʼatun = 20 tun = 7,200 days ⓘ 1 tun = 18 winal = 360 days ⓘ 1 winal = 20 kʼin = 20 days ⓘ |
| usedBy |
Aztec culture
ⓘ
surface form:
Aztec civilization
Maya city‑states ⓘ
surface form:
Classic Maya
Epi-Olmec culture ⓘ
surface form:
Izapa culture
Maya civilization ⓘ Mixtec civilization ⓘ Olmec civilization ⓘ Zapotec civilization ⓘ |
| writingSystem | Maya hieroglyphs ⓘ |
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: Mesoamerican Long Count calendar Description of subject: The Mesoamerican Long Count calendar is an ancient Mesoamerican timekeeping system that tracks days in a linear count from a mythological starting point, most famously used by the Maya and other regional civilizations.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Mesoamerican Long Count
this entity surface form:
Maya Long Count calendar
this entity surface form:
Maya Long Count calendar
this entity surface form:
Maya Long Count calendar
this entity surface form:
Maya Long Count calendar
this entity surface form:
Maya Long Count calendar