6 events the sources record for this year, grouped by region.
What happened
Southern Europe (6)
Athens, freed of its tyrants, becomes far stronger than before (Herodotus, Histories 5.66)
Isagoras summons Cleomenes, who takes the Acropolis; the Athenians besiege them for two days (Herodotus, Histories 5.70-72)tradition
Porsenna, amazed at Mucius's courage, changes his mind and inclines toward a treaty (siege of the Janiculum) (Livy, History of Rome (Ab Urbe Condita) 2.13)tradition
Tarquin flees to Clusium and appeals to Porsena (Plutarch's Parallel Lives Plut. Publicola 16.1)tradition
When Porsena surrounds Rome, famine strikes and other Tuscan forces also invade (Plutarch's Parallel Lives Plut. Publicola 17.1)tradition
Porsena ends the war on conditions: return of conquered land, return of prisoners, and receiving deserters (Plutarch's Parallel Lives Plut. Publicola 18.2)tradition