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Sparta invades Attica (431 BCE)

431 BCEAttica

2,455.9 years ago

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In 431 BCE the Spartan king Archidamus II invaded Attica with his army, opening the first phase of the Peloponnesian War.

The opening phase, called the Ten Years' War or the Archidamian War, began in 431 BC when the Spartan king Archidamus II invaded Attica with his army.

From Wikipedia, Peloponnesian War (opens en.wikipedia.org), as of 2026-08-22.

Short and sourced: tap any line to see the sentences it rests on.

What happened

How Athens answered

Later invasions

Related

Events

  1. 431 BCEThebans attack Plataea and the war begins
  2. 430 BCEPlague breaks out in Athens
  3. 431/430 BCEAthens holds a public funeral for its first war dead
  4. 429 BCEPericles dies

Words about it

  1. Thucydides, 431 BCE, written laterThucydides opens his history of the war
  2. Thucydides, 430 BCE, written laterThucydides on the plague in Athens
  3. Thucydides, 416 BCE, written laterThe Athenian envoys to Melos on power
  4. Pericles, set in 431/430 BCEPericles on freedom in daily life

Every line here is ours, written from Wikipedia, Peloponnesian War (opens en.wikipedia.org) (text CC BY-SA 4.0) and checked line by line against the sentences it cites. Where Wikipedia relies on Plutarch or another ancient writer, so do we, and we say so.