The world in 427 BC — what happened that year

21 events the sources record for this year, grouped by region.

What happened

West Asia (5)

• The fleet reaches Embaton, hears of Mytilene's fall, and holds a council (Thucydides, History of the Peloponnesian War 3.29.2)
• Alcidas executes most of the prisoners at Myonnesus (Thucydides, History of the Peloponnesian War 3.32.1)
• Putting in at Ephesus, he releases the remaining prisoners after Samian envoys protest (Thucydides, History of the Peloponnesian War 3.32.2)
• Spotted off Clarus by Athenian fast ships, he flees in haste (Thucydides, History of the Peloponnesian War 3.33.1)
• At Notium, Paches tricks the Arcadian mercenary captain Hippias and seizes the city (Thucydides, History of the Peloponnesian War 3.34.1)

Southern Europe (16)

• When food runs out, Mytilene hands the city over to Paches (Thucydides, History of the Peloponnesian War 3.28.1)
• Paches takes Pyrrha and Eresus and arrests Salaethus (Thucydides, History of the Peloponnesian War 3.35.1)
• Athens resolves to put all adult men of Mytilene to death, then reverses itself and reopens the debate (speeches of Cleon and Diodotus) (Thucydides, History of the Peloponnesian War 3.36.2)
• Over 1,000 ringleaders are executed, the walls demolished, and the land divided into 3,000 cleruchy plots (Thucydides, History of the Peloponnesian War 3.50.1)
• Nicias takes Minoa, the island off Megara, and fortifies it (Thucydides, History of the Peloponnesian War 3.51.1)
• Out of food, Plataea surrenders to the Spartan commander (Thucydides, History of the Peloponnesian War 3.52.1)
• After a trial, 200 Plataeans and 25 Athenians are executed and the city is destroyed (Thucydides, History of the Peloponnesian War 3.68.1)
• Oligarchs released as prisoners stir up a break with Athens, starting the civil war in Corcyra (Thucydides, History of the Peloponnesian War 3.70.1)
• Nicostratus arrives with 12 ships and 500 Messenian hoplites and mediates a reconciliation (Thucydides, History of the Peloponnesian War 3.75.1)
• Sixty Corcyraean ships sail out in disorder and fight the Peloponnesians (ending at sunset) (Thucydides, History of the Peloponnesian War 3.77.1)

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