The world in 454 BC — what happened that year

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

What happened

A relief fleet of 50 ships, unaware of the situation, reaches the Mendesian mouth and is attacked from land and sea, mostly destroyed (Thucydides, History of the Peloponnesian War 1.110.4)

Between Segesta and Lilybaeum, war broke out over the land along the Mazaros river. (Diodorus Siculus, Library of History 11.86.2)
Envoys are sent to Athens to copy Solon's laws and to study the institutions, customs and laws of other Greek states (Livy, History of Rome (Ab Urbe Condita) 3.31) tradition
Athens marches as far as Pharsalus to restore the exiled Thessalian king Orestes, but cavalry stops it and it returns without result (Thucydides, History of the Peloponnesian War 1.111.1)
Pericles lands at Sicyon with 1,000 men, wins, and ferries the Achaeans across (Thucydides, History of the Peloponnesian War 1.111.2)
Athens besieges Oeniadae in Acarnania but fails to take it and returns (Thucydides, History of the Peloponnesian War 1.111.3)