The discovery of the San José shipwreck

In November 2015, the 'holy grail' of shipwrecks, laden with treasure worth an estimated $18 billion, was found off the coast of Colombia.

The San José, a Spanish galleon, sank in 1708, when a British warship intercepted it.

Rachel Naylor speaks to former Colombian President Juan Manuel Santos about how it was located and the ongoing international dispute over who owns it.

Witness History is a short BBC World Service podcast about history that takes you inside big moments from the past through first-hand testimony and archive. Each weekday, in around nine minutes, we revisit one moment that helped shape the world and hear it through the voice of someone who was there. Scientists, artists, campaigners, soldiers, leaders and everyday people tell their true stories.

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(Photo: Wager's Action off Cartagena, Samuel Scott's 1774 painting of the destruction of the San José. Credit: Alamy)