By decree of the Senate and the people, war is declared on Praeneste, and Praeneste, joined with the Volsci, storms ... the next year (Livy, History of Rome (Ab Urbe Condita) 6.22)
Agesilaus is suspected of complicity in Phoebidas's seizure of the Cadmea (Plutarch's Parallel Lives Plut. Agesilaus 24)
At the Theban gymnasium outside the city walls, Phoebidas, at the urging of Leontiades, occupies the Cadmea at midday during the Thesmophoria. (Xenophon, Hellenica 5.2.25–5.2.29)
Sparta decides to keep garrisoning the Cadmea, puts Ismenias on trial, and sentences him to death. (Xenophon, Hellenica 5.2.35)
Teleutias marches through Potidaea into Olynthian territory, and stops his phalanx ten stadia short of the city. (Xenophon, Hellenica 5.2.39)
Battle under the walls of Olynthus: the Olynthian cavalry breaks the Laconian cavalry commander, but Derdas's cavalry counterattacks and wins. (Xenophon, Hellenica 5.2.41–5.2.43)