Depictions of ships abound on Minoan seals and frescoes. They are detailed enough to show that the vessels were impressive: generally, they had 15 oars on each side and square sails, and were probably about 50 feet long. But little more was known about actual Minoan seafaring--until Greek archaeologist Elpida Hadjidaki became the first to discover a Minoan shipwreck... For nearly a month, she and a team of three sponge and coral divers aboard a 20-foot-long wooden fishing boat trolled up and down the island's shores. Together with George Athanasakis of Athens Polytechnic University, they used side-scanning sonar and detected...