Chronological Table 431 (Nehemiah rebuilding Jerusalem. Rome completes conquest of Volscians.) Outbreak of Peloponnesian War Siege of Potides, Sokrates, then aged 38, saves in battle the life of Alkibiades, aged 18, and gives up in his favour the prize for valour. 430 Spartans invade Attica. The plague of Athens. Xenophon born about this time. 429 Death of Perikles. Plague continues. 428 ...