Athenians and Spartans clashed at the isle of Kane in 406 BC, one of the last battles of the Great Peloponnesian War. Some 100 ships were sent to the bottom of the Aegean Sea as a result of the prolonged, hard-fought naval battle. Archaeologists have long debated the location of Kane, but none of the islands in the Aegean seemed to fit the descriptions. At long last, thanks to artifacts and core samples, the location of Kane has been identified, as has the reason it took so long to find it: It isn’t an island anymore.