2,200-year-old Roman shipwreck unlocks mysteries of how ships were built and repaired
Get the Popular Science daily newsletterđź’ˇ Breakthroughs, discoveries, and DIY tips sent six days a week. About 2,200 years ago, a Roman Republic ship sank off the coast of modern-day Croatia, with wood and amphorae (ancient storage containers) of wine on board. Scientists are not sure why it sank, but the Ilovik–ParĹľine 1 shipwreck was discovered in 2016. However, the archeologists and researchers behind a new study published today in the journal Frontiers in Materials weren’t interested in its precious cargo. The ship’s critical waterproofing layer was their treasure. This unique protective layer on a ship traps pollen in its stickiness just like tree sap. By studying the type and quantity of pollen, as well as the molecular composition of the coating itself, researchers can start forming theories about where the boat was when this essential coating was created and applied. “In archaeology little attention is paid to organic waterproofing materials. Yet they are essential for navigation at sea or on rivers and are true witnesses of past naval technologies,” Armelle CharriĂ©-Duhaut, first author of …

