Four previously unknown shipwrecks have been discovered some 30 kilometers off the Bay of Irakleio, Crete, in recent underwater exploration conducted by the ephorate of underwater antiquities. The new finds comprise two Roman era shipwrecks, one containing 1st and 2nd-century Cretan amphorae and the other containing 5th-7th century post-Roman era amphorae, and two shipwrecks containing Byzantine amphorae, dated from the 8th-9th century and later. The finds, which were made south and east of the Dia islet, which lies 7 nautical miles north of Irakleio, were documented and taken ashore for further analysis. Three more recent shipwrecks were also discovered, as...