China has announced the discovery of two shipwrecks found about a mile deep in the water on the northwest slope of the sea and located only about 10 nautical miles apart. According to researchers, one of the ships appeared to export mainly porcelain, and the other imported wood. A preliminary The ca. 100,000 ceramics have been tentatively dated to the Ming Dynasty, Zhengde period (1506 to 1521), and are scattered over tens of thousands of square miles.