Heavenly bodies | 28 July 2016

Initially it must have been a nasty surprise. On 16 August 1972 an amateur scuba diver named Stefano Mariottini was fishing in shallow waters just off the coast of Calabria. At about noon he was poking around some rocks when he saw part of an arm protruding from the sand. His first thought, a natural one, was that he had found a cadaver.

On closer examination, it became clear that there was not just one body but two — and that they were made not of flesh but of metal. Mariottini’s discoveries are world-famous now, taking their name — the Riace bronzes — from the little resort near which he was swimming. In terms of classical sculpture, he had hit the jackpot.

Bronze was the medium of choice for many of the most admired artists of the ancient world. But because it is also a useful material, which is easily melted and recycled, classical bronzes have — with extraordinarily rare exceptions — totally vanished.