Ulu Burun Copper Oxhide Ingots Linked to Cretan Demand 1300 BCE

More than 6 tons of copper ingots shaped like stretched animal hides sank in a single Bronze Age shipwreck around 1300 BCE.

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The oxhide ingot shape allowed ropes to be threaded through corners, stabilizing loads during long sea voyages.

The Uluburun shipwreck discovered off the coast of Turkey dates to the late 14th century BCE and carried approximately 10 tons of cargo, including over 300 copper oxhide ingots. Each ingot weighed roughly 20 to 30 kilograms and was cast into a standardized shape resembling an animal hide to facilitate transport. Isotopic analysis identifies many of the copper sources as Cypriot, a primary supplier of Bronze Age metal. Crete, as a major maritime hub, was part of the demand network for such raw materials. Bronze production required precise alloying of copper with tin, linking multiple trade regions. Scholarly analysis published through the Institute of Nautical Archaeology details the cargo composition and trade implications. The scale of shipment reflects industrial-level metallurgy in the eastern Mediterranean. Metal supply chains connected palace economies across sea lanes. The wreck captures a moment of interrupted industrial logistics.

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Bulk copper transport indicates centralized planning and predictable consumption. Minoan and Mycenaean workshops required steady metal inflow for tools, weapons, and ceremonial objects. Standardized ingot shapes imply regulated production and accounting systems. Industrial demand tied Crete to foreign mining regions. Disruption of such shipments would stall manufacturing capacity. Maritime insurance did not exist, but risk management depended on navigational expertise. Trade in strategic materials formed the backbone of Late Bronze Age economic stability.

For sailors aboard the vessel, copper ingots represented routine cargo rather than historical evidence. A sudden storm converted industrial ambition into seabed archive. The irony is that catastrophe preserved proof of economic scale. Each ingot now rests corroded yet traceable to ancient mines. Human labor invested in extraction and casting survives in oxidized form. Commerce froze in transit. The ocean recorded supply chains more faithfully than written contracts.

Source

Institute of Nautical Archaeology

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