A Time Capsule on the Seabed
In 1982, a sponge diver named Mehmet Çakır reported seeing "metal biscuits with ears" on the seafloor off Uluburun, Turkey. Those "biscuits" were copper ingots from the wreck of a Late Bronze Age merchant ship that sank around 1300 BCE. The vessel came to rest on a steep, rocky slope between 44 and 61 meters below the surface. Its discovery led to one of the most extensive underwater archaeological excavations ever conducted. Over eleven seasons from 1984 to 1994, a team from the Institute of Nautical Archaeology completed 22,413 dives to meticulously recover the ship's contents.
Dendrochronological analysis of firewood found on the ship dates its final voyage to after 1305 BCE. The ship itself was a single-masted vessel, approximately 15 to 16 meters long. It was built from Lebanese cedar planks and oak tenons, using a shell-first construction method with mortise-and-tenon joints, an advanced technique for its time. The ship carried 24 stone anchors of a type commonly found in Syria-Palestine and Cyprus, but rarely in the Aegean. The immense weight and diversity of its contents provides a record of international trade more than three millennia ago.
Cargo from a Lost World
The ship's hold contained over 20 tons of cargo, dominated by raw materials. The primary load was ten tons of copper, comprising 354 oxhide-shaped ingots and 121 bun-shaped ingots. Lead isotope analysis confirmed the copper came from Cyprus. Accompanying the copper was approximately one ton of tin ingots. The roughly 10-to-1 ratio of copper to tin is the ideal proportion for creating bronze. Isotope analysis of the tin showed a complex trade network, with two-thirds originating from mines in Turkey's Taurus Mountains and the remaining third traced to Tajikistan and Uzbekistan, over 3,000 kilometers away.
The vessel carried 175 disc-shaped ingots of raw glass, some colored cobalt blue and others turquoise—some of the earliest intact glass ingots ever found. Organic materials survived as well, including logs of African ebony, elephant tusks, hippopotamus teeth, and ostrich eggshells. Over 149 Canaanite jars held terebinth resin, a substance used for incense, while others contained olives, grapes, and pomegranates.
Among the finished goods were Mycenaean, Cypriot, and Canaanite pottery, bronze tools, and weapons. Luxury items included gold and silver jewelry, carnelian and agate beads, and faience cups. Several unique items indicate the cargo's elite destination. Archaeologists found a solid gold scarab inscribed with the name of the Egyptian queen Nefertiti, the only such seal of hers ever discovered. They also recovered a small, hinged wooden diptych with recessed surfaces for wax, which represents the world's oldest known book.