In 2009, a team of marine archaeologists carrying out a sonar survey of the seabed around the remote Italian island of Ventotene made an astonishing discovery. The wrecks of five ancient Roman ships were found in pristine condition, each one fully laden with exotic goods. Remarkably, much of the cargo remained exactly as the ancient Roman crews had loaded it, suggesting that these ships had not capsized but had gone to the bottom of the sea intact and upright.