History of the Peloponnesian War

And Agnon therefore came back with his fleet, having of four thousand men in less than forty days lost one thousand and fifty of the plague. But the soldiers that were there before stayed upon the place and continued the siege of Potidaea.

After the second invasion of the Peloponnesians the Athenians, having their fields now the second time wasted and both the sickness and war falling upon them at once, changed their minds and accused Pericles, as if by his means they had been brought into these calamities, and desired earnestly to compound with the Lacedaemonians, to whom also they sent certain ambassadors, but they returned without effect.