Once when the Athenians were tired out with a war which they were waging against the Megarians for the island of Salamis, they made a law that no one in future, on pain of death, should move, in writing or orally, that the city take up its contention for Salamis.
Edition :
Plutarch Lives I: Theseus and Romulus, Lycurgus and Numa, Solon and Publicola, Ed. Jeffrey Henderson, trans. Bernadotte Perrin (The Loeb Classical Library 46), Harvard University Press: Cambridge/MA - London 1967 (first ed. 1914).
Notes :
The whole description of the actions around Salamis with Solon involved spans roughly from 8.1 to 9.4.
Brill's New Pauly dates the struggles for Salamis around the year 600 B.C.