Invasion of Attica in 431 BC
E1029815
The Invasion of Attica in 431 BC was the first major Spartan-led land offensive against Athenian territory at the outset of the Peloponnesian War, marking the beginning of large-scale hostilities between the two city-states.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Invasion of Attica in 431 BC canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13285275 — 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: Invasion of Attica in 431 BC Context triple: [Archidamus II, campaign, Invasion of Attica in 431 BC]
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A.
Athenian siege of Thasos
The Athenian siege of Thasos was a prolonged 5th-century BCE military campaign in which Athens blockaded and eventually subdued the rebellious island polis of Thasos during the early years of the Delian League.
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B.
Siege of Mytilene (406 BC)
The Siege of Mytilene (406 BC) was a key episode in the late Peloponnesian War in which Spartan forces blockaded the Athenian-held city of Mytilene on Lesbos, prompting the Athenian naval response that led to the Battle of Arginusae.
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C.
Plataean siege (431–427 BC)
The Plataean siege (431–427 BC) was a prolonged Spartan and Theban blockade and eventual capture of the Athenian-allied city of Plataea during the early years of the Peloponnesian War.
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D.
Sicilian Expedition
The Sicilian Expedition was a massive Athenian military campaign against Syracuse in Sicily (415–413 BCE) that ended in catastrophic defeat and marked a major turning point in the Peloponnesian War.
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E.
siege of Athens
The siege of Athens was the final Spartan blockade and encirclement of the city at the end of the Peloponnesian War, leading to Athens’ surrender and the collapse of its empire in 404 BC.
- 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: Invasion of Attica in 431 BC Target entity description: The Invasion of Attica in 431 BC was the first major Spartan-led land offensive against Athenian territory at the outset of the Peloponnesian War, marking the beginning of large-scale hostilities between the two city-states.
-
A.
Athenian siege of Thasos
The Athenian siege of Thasos was a prolonged 5th-century BCE military campaign in which Athens blockaded and eventually subdued the rebellious island polis of Thasos during the early years of the Delian League.
-
B.
Siege of Mytilene (406 BC)
The Siege of Mytilene (406 BC) was a key episode in the late Peloponnesian War in which Spartan forces blockaded the Athenian-held city of Mytilene on Lesbos, prompting the Athenian naval response that led to the Battle of Arginusae.
-
C.
Plataean siege (431–427 BC)
The Plataean siege (431–427 BC) was a prolonged Spartan and Theban blockade and eventual capture of the Athenian-allied city of Plataea during the early years of the Peloponnesian War.
-
D.
Sicilian Expedition
The Sicilian Expedition was a massive Athenian military campaign against Syracuse in Sicily (415–413 BCE) that ended in catastrophic defeat and marked a major turning point in the Peloponnesian War.
-
E.
siege of Athens
The siege of Athens was the final Spartan blockade and encirclement of the city at the end of the Peloponnesian War, leading to Athens’ surrender and the collapse of its empire in 404 BC.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
land offensive
ⓘ
military campaign ⓘ |
| AthenianStrategy |
refusal to give open battle
ⓘ
reliance on naval power ⓘ withdrawal of rural population behind Long Walls ⓘ |
| belligerent |
Athens
NERFINISHED
ⓘ
Sparta NERFINISHED ⓘ |
| cause |
breakdown of Thirty Years' Peace
ⓘ
tensions between Athenian Empire and Peloponnesian League ⓘ |
| chronologicalOrder | first major Spartan-led land offensive against Athenian territory in the Peloponnesian War ⓘ |
| combatant |
Athenian Empire
NERFINISHED
ⓘ
Peloponnesian League NERFINISHED ⓘ |
| commander | Archidamus II NERFINISHED ⓘ |
| conflictSide | Spartan offensive operations ⓘ |
| conflictType | invasion ⓘ |
| date | 431 BC ⓘ |
| describedBy | Thucydides NERFINISHED ⓘ |
| duration | several weeks ⓘ |
| era | Classical Greece NERFINISHED ⓘ |
| followedBy | subsequent annual invasions of Attica ⓘ |
| historicalSource | History of the Peloponnesian War NERFINISHED ⓘ |
| initiatedBy | Sparta NERFINISHED ⓘ |
| leader | Archidamus II NERFINISHED ⓘ |
| location |
Athenian territory
ⓘ
Attica NERFINISHED ⓘ |
| militaryTheater | land warfare in central Greece ⓘ |
| opponentCommander | Pericles NERFINISHED ⓘ |
| partOf | Peloponnesian War NERFINISHED ⓘ |
| politicalContext | rivalry between Athenian maritime empire and Spartan-led Peloponnesian League ⓘ |
| relatedEvent |
Siege of Potidaea
NERFINISHED
ⓘ
Theban attack on Plataea in 431 BC ⓘ |
| result |
Athenians remained behind city walls
ⓘ
Spartan ravaging of Attica ⓘ beginning of large-scale hostilities between Athens and Sparta ⓘ no decisive pitched battle ⓘ |
| significance |
demonstrated Pericles' defensive strategy
ⓘ
marked the beginning of open war between Athens and Sparta ⓘ set pattern of annual Spartan invasions of Attica ⓘ |
| SpartanForces | Peloponnesian allied contingents ⓘ |
| strategy |
avoidance of siege of Athens
ⓘ
ravaging of enemy territory ⓘ |
| tactics |
devastation of crops and farmland
ⓘ
psychological pressure on Athenian populace ⓘ |
| target | Athens NERFINISHED ⓘ |
| targetRegion | Attic countryside ⓘ |
| year | 431 BC ⓘ |
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: Invasion of Attica in 431 BC Description of subject: The Invasion of Attica in 431 BC was the first major Spartan-led land offensive against Athenian territory at the outset of the Peloponnesian War, marking the beginning of large-scale hostilities between the two city-states.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.