The world in 426 BC — what happened that year

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

What happened

Took the city of Molykreia. (Diodorus Siculus, Library of History 12.60.3)
The dictator calls on the master of the horse and the cavalry to encourage the left wing (battle of Fidenae) (Livy, History of Rome (Ab Urbe Condita) 4.33) tradition
The slaughter inside Fidenae is greater than in the battle, and at last they throw down their arms and surrender, begging for their lives (Livy, History of Rome (Ab Urbe Condita) 4.34) tradition
A succession of earthquakes sends the Peloponnesian army, which had reached the Isthmus, back home (Thucydides, History of the Peloponnesian War 3.89.1)
A tidal wave from an earthquake sweeps over Orobiae in Euboea (Thucydides, History of the Peloponnesian War 3.89.2)
Laches attacks Mylae, which belongs to Messana, and forces its surrender (Thucydides, History of the Peloponnesian War 3.90.2)
Nicias attacks Melos with 60 ships (ravages the land, but Melos does not surrender) (Thucydides, History of the Peloponnesian War 3.91.1)
At Tanagra, Athens defeats the Tanagran and Theban relief forces (Thucydides, History of the Peloponnesian War 3.91.5)
Sparta founds the colony of Heraclea in Trachinia (Thucydides, History of the Peloponnesian War 3.92.1)
Demosthenes plunders Leucas and then plans an Aetolian campaign (Thucydides, History of the Peloponnesian War 3.94.1)