History of the Peloponnesian War

Not long after this, Euboea revolted from the Athenians; and when Pericles had already crossed over to it with an army of Athenians, news was brought him that Megara had revolted; that the Peloponnesians were on the point of invading Attica; and that the Athenian garrison had been put to the sword by the Megareans, except as many as had escaped to Nisaea. Now the Megareans had revolted, after calling to their aid the Corinthians, and Sicyonians, and Epidaurians. So Pericles took the army back from Euboea as quickly as possible.

After this the Peloponnesians made an incursion as far as Eleusis and Thrium, and ravaged the country, under the command of Pleistoanax, the son of Pausanias, king of the Lacedaemonians; and without advancing any farther they returned home.

And the Athenians having again crossed over to Euboea under the command of Pericles, subdued the whole of it, and settled the rest of the island by treaty; but the Histiaeans they expelled from their homes, and held the territory themselves.

Having returned from Euboea, not long after they made a truce with the Lacedaemonians and their allies for thirty years, giving back Nisaea, Pegae, Troezen, Achaia; for of these places in the Peloponnese the Athenians were in possession. Now in the sixth year a war broke out between the Samians and Milesians about Priene;