After the death of Alexander, he was accused of impiety and withdrew to chalcis, where he died B.C. 322. Grote says: "In the published writings of Aristotle the accusers found various heretical doctrines suitable for sustaining their indictment; as, for example, the declaration that prayer and sacrifices to the gods were of no avail."
"A Biographical Dictionary of Freethinkers of All Ages and Nations"
Joseph Mazzini Wheeler
Such of their number as took refuge in Eretria, which they presumed to be friendly to them, found their fate in that city, being butchered by the inhabitants; while those who fled to the Athenian fort in the Eretrian territory, and the vessels which got to chalcis, were saved.
"The History of the Peloponnesian War"
Thucydides
However, while they were coasting along their own shore, there were the Athenians sailing along in line with them; and when they tried to cross over from Patrae in Achaea to the mainland on the other side, on their way to Acarnania, they saw them again coming out from chalcis and the river Evenus to meet them.
"The History of the Peloponnesian War"
Thucydides