His most important military achievement was the defeat of the Etruscans and Carthaginians at the Battle of Cumae (474 BC), by which he saved the Greeks of Campania from Etruscan domination. A bronze helmet (now in the British Museum), with an inscription commemorating the event, was dedicated at Olympia. He died at Catana/Aetna in 467 and was buried there, but his grave was later destroyed when the former inhabitants of Catana returned to the city. The tyranny at Syracuse lasted only a year or so after his death.