The world in 424 BC — what happened that year

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

What happened

Lesbian exiles with mercenaries take Antandrus by treachery (Thucydides, History of the Peloponnesian War 4.52.3)

Athens gained Mende thanks to a traitor, and besieged Scione. (Diodorus Siculus, Library of History 12.72.9)
A solar eclipse occurs in spring, and an earthquake earlier in the same month (Thucydides, History of the Peloponnesian War 4.52.1)
Nicias and others attack Cythera, off Laconia, with 60 ships and 2,000 hoplites (Thucydides, History of the Peloponnesian War 4.53.1)
After the battle the Cytherians withdraw to the upper town and surrender to Nicias, and Athens places a garrison there (Thucydides, History of the Peloponnesian War 4.54.2)
The Athenians plunder coastal areas such as Asine and Helos for about seven days (Thucydides, History of the Peloponnesian War 4.54.4)
The Athenians capture and burn Thyrea and decide to take the Aeginetan prisoners to Athens and put them to death (Thucydides, History of the Peloponnesian War 4.57.3)
The Sicilians accept Hermocrates' advice and end the war, each keeping what it holds (Thucydides, History of the Peloponnesian War 4.65.1)
Athens punishes the generals back from Sicily: two banished and one fined (Thucydides, History of the Peloponnesian War 4.65.3)
Athenian generals come to Minoa, the island off Megara, by night to set an ambush and plan with an insider to open the gates (Thucydides, History of the Peloponnesian War 4.67.1)
The insider opens the gate, Demosthenes rushes in and takes the long walls, and the Peloponnesian garrison flees to Nisaea (Thucydides, History of the Peloponnesian War 4.68.3)