In the early 19th century, the Elgin Marbles, a collection of sculptures dating back 2500 years, were taken by a British diplomat from the Parthenon in Greece. He sold them to the British government, which then shipped them off to the British Museum. Believing the marbles were looted, the Greek government listed a dispute with UNESCO over their return, but the British government declined the organization’s attempt at mediation. Today, the Elgin Marbles remain in the British Museum, and discussions between the two countries regarding their return are in progress.