A huge quantity of olive stones on an ancient shipwreck more than 2,000 years old has provided valuable insight into the diet of sailors in the ancient world, researchers in Cyprus said Thursday. The shipwreck, dating from around 400 B.C. and laden mainly with wine amphorae from the Aegean island of Chios and other north Aegean islands, was discovered deep under the sea off Cyprus's southern coast. Excavation on the site, which started in November 2007, has determined that the ship was a merchant vessel of the late classical period. "An interesting piece of evidence that gives us information on...