Middle Formative period
E687638
The Middle Formative period was a key Mesoamerican era (roughly 900–400 BCE) marked by the growth of early urban centers, increasing social complexity, and the florescence of cultures such as the Olmec.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Middle Formative period canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7763128 — 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: Middle Formative period Context triple: [Laguna de los Cerros, timeOfMajorOccupation, Middle Formative period]
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A.
Late Formative period
The Late Formative period was a Mesoamerican cultural era (roughly 400 BCE–250 CE) marked by the growth of complex societies, urban centers, and early monumental architecture preceding the Classic period.
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B.
Early Intermediate Period
The Early Intermediate Period was a formative era in ancient Peruvian history (roughly 200 BCE–600 CE) marked by the rise of regional cultures and monumental architecture along the coast and highlands.
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C.
Late Intermediate Period
The Late Intermediate Period was a pre-Columbian era in Andean history marked by the rise of powerful regional states and cultures, including the Chimú, between the decline of the Wari and Tiwanaku empires and the expansion of the Inca.
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D.
Middle Woodland period
The Middle Woodland period was a prehistoric era in eastern North America (roughly 100 BCE–500 CE) marked by widespread trade networks, elaborate earthworks, and the flourishing of cultures such as the Hopewell tradition.
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E.
Late Archaic period
The Late Archaic period was a prehistoric era in North America marked by increasing social complexity, regional cultural differentiation, and the development of more advanced hunting, gathering, and early horticultural practices.
- 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: Middle Formative period Target entity description: The Middle Formative period was a key Mesoamerican era (roughly 900–400 BCE) marked by the growth of early urban centers, increasing social complexity, and the florescence of cultures such as the Olmec.
-
A.
Late Formative period
The Late Formative period was a Mesoamerican cultural era (roughly 400 BCE–250 CE) marked by the growth of complex societies, urban centers, and early monumental architecture preceding the Classic period.
-
B.
Early Intermediate Period
The Early Intermediate Period was a formative era in ancient Peruvian history (roughly 200 BCE–600 CE) marked by the rise of regional cultures and monumental architecture along the coast and highlands.
-
C.
Late Intermediate Period
The Late Intermediate Period was a pre-Columbian era in Andean history marked by the rise of powerful regional states and cultures, including the Chimú, between the decline of the Wari and Tiwanaku empires and the expansion of the Inca.
-
D.
Middle Woodland period
The Middle Woodland period was a prehistoric era in eastern North America (roughly 100 BCE–500 CE) marked by widespread trade networks, elaborate earthworks, and the flourishing of cultures such as the Hopewell tradition.
-
E.
Late Archaic period
The Late Archaic period was a prehistoric era in North America marked by increasing social complexity, regional cultural differentiation, and the development of more advanced hunting, gathering, and early horticultural practices.
- F. None of above. chosen
Statements (62)
| Predicate | Object |
|---|---|
| instanceOf |
Mesoamerican cultural period
ⓘ
archaeological period ⓘ |
| alsoKnownAs | Middle Preclassic period NERFINISHED ⓘ |
| appliesToJurisdiction | Mesoamerica NERFINISHED ⓘ |
| economicActivity |
bean and squash cultivation
ⓘ
maize agriculture ⓘ marine shell trade ⓘ obsidian trade ⓘ salt production and exchange ⓘ |
| endTime | circa 400 BCE ⓘ |
| fieldOfStudy | Mesoamerican archaeology ⓘ |
| followedBy | Late Formative period ⓘ |
| follows | Early Formative period ⓘ |
| hasCharacteristic |
development of early writing or proto-writing in some regions
ⓘ
development of regional chiefdoms ⓘ emergence of regional art styles ⓘ expansion of long-distance trade networks ⓘ growth of early urban centers ⓘ increased social stratification ⓘ increased use of jade and other prestige goods ⓘ increasing social complexity ⓘ intensification of agriculture ⓘ monumental architecture ⓘ public ceremonial complexes ⓘ widespread use of ceramics ⓘ |
| hasNotableSite |
Ceibal
NERFINISHED
ⓘ
Cerro de las Mesas NERFINISHED ⓘ Chalcatzingo NERFINISHED ⓘ Cuicuilco NERFINISHED ⓘ El Mirador region NERFINISHED ⓘ El Opeño NERFINISHED ⓘ Izapa NERFINISHED ⓘ Kaminaljuyú NERFINISHED ⓘ La Blanca NERFINISHED ⓘ La Venta NERFINISHED ⓘ Las Bocas NERFINISHED ⓘ Monte Albán NERFINISHED ⓘ Nakbé NERFINISHED ⓘ San José Mogote NERFINISHED ⓘ San Lorenzo Tenochtitlán NERFINISHED ⓘ Takalik Abaj NERFINISHED ⓘ Tlatilco NERFINISHED ⓘ Tres Zapotes NERFINISHED ⓘ |
| hasSignificantCulture |
Central Mexican highlands cultures
NERFINISHED
ⓘ
Epi-Olmec culture NERFINISHED ⓘ Gulf Coast cultures ⓘ Maya culture NERFINISHED ⓘ Olmec civilization NERFINISHED ⓘ Valley of Oaxaca cultures NERFINISHED ⓘ Zapotec culture NERFINISHED ⓘ |
| partOf | Formative period ⓘ |
| religiousCharacteristic |
construction of sacred precincts
ⓘ
development of complex ritual systems ⓘ use of ritual offerings in caches ⓘ |
| startTime | circa 900 BCE ⓘ |
| temporalContext | first millennium BCE ⓘ |
| typicalArchitecture |
earthen platform mounds
ⓘ
plaza-centered site layouts ⓘ stone sculptures and altars ⓘ |
| typicalArt |
Olmec-style monumental heads
ⓘ
incised and painted ceramics ⓘ jade figurines and ornaments ⓘ |
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: Middle Formative period Description of subject: The Middle Formative period was a key Mesoamerican era (roughly 900–400 BCE) marked by the growth of early urban centers, increasing social complexity, and the florescence of cultures such as the Olmec.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.