Sicilian Expedition

E80798

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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All labels observed (5)

Statements (47)

Predicate Object
instanceOf Athenian military expedition
military campaign
armySize thousands of hoplites and light troops
authorizedBy Athenian Assembly (Ekklesia)
surface form: Athenian Assembly
belligerent Delian League
surface form: Allies of Athens

Arcadians
surface form: Allies of Syracuse

Athens
Syracuse
cause Athenian ambition to expand influence in Sicily
Athenian desire to aid Egesta against Selinus
characterizedAs one of the greatest military disasters in Athenian history
civilization Greek Antiquity
surface form: Ancient Greece
commander Alcibiades
Lamachus
Nicias
conflict Peloponnesian War
consequence encouragement of revolts among Athenian allies
increased Spartan confidence
severe loss of Athenian ships and men
weakening of Athenian military power
counterTactic Syracusan counter-walls
describedIn History of the Peloponnesian War
endDate 413 BCE
era Classical Greece
fleetSize over 130 triremes in initial force
historicalSignificance major factor in eventual Athenian defeat in the Peloponnesian War
involved ostracized leader Alcibiades recalled to stand trial
location Sicily
Syracuse
notableEvent Athenian failure to capture Syracuse
Athenian naval defeat in the Great Harbor of Syracuse
arrival of Spartan general Gylippus in Sicily
retreat and destruction of Athenian land forces
opposingCommander Gylippus
Hermocrates
outcome capture of many Athenian soldiers
destruction of Athenian expeditionary force
partOf Peloponnesian War
politicalContext Athenian democracy during the Peloponnesian War
precededBy Athenian debate over the expedition in the Assembly
primarySourceAuthor Thucydides
result catastrophic Athenian defeat
decisive Syracusan victory
startDate 415 BCE
strategy attempt to besiege Syracuse
tactic construction of siege walls around Syracuse
turningPointIn Peloponnesian War

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
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- If the subject is not a named entity, return an empty list.
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- Separate several objects into multiple triples with one object.
Input
Subject: Sicilian Expedition
Description of subject: 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.

Referenced by (23)

Full triples — surface form annotated when it differs from this entity's canonical label.

Peloponnesian War hasPart Sicilian Expedition
Peloponnesian War notableBattle Sicilian Expedition
this entity surface form: Siege of Syracuse
Classical Greece hasNotableEvent Sicilian Expedition
Thucydides described Sicilian Expedition
Thucydides hasPartInWork Sicilian Expedition
this entity surface form: Sicilian Expedition narrative
Alcibiades participatedIn Sicilian Expedition
Archidamian War chronologicallyPrecedes Sicilian Expedition
History of the Peloponnesian War coversEvent Sicilian Expedition
Peace of Nicias precededEvent Sicilian Expedition
Demosthenes (general) notableBattle Sicilian Expedition
Nicias participatedIn Sicilian Expedition
Nicias persuadedToLead Sicilian Expedition
Hermocrates militaryConflict Sicilian Expedition
Hippocrates of Gela notableEvent Sicilian Expedition
this entity surface form: siege of Syracuse
Life of Nicias focusesOnEvent Sicilian Expedition
Life of Alcibiades describes Sicilian Expedition
Nician Peace preceded Sicilian Expedition
Lamachus notableBattle Sicilian Expedition
Lamachus diedIn Sicilian Expedition
Lamachus activeDuringConflict Sicilian Expedition
this entity surface form: Sicilian phase of the Peloponnesian War
Νικίας participatedIn Sicilian Expedition
Gylippus participatedIn Sicilian Expedition
Ionian War follows Sicilian Expedition