When King Charles III appeared at COP28 wearing a matching tie and pocket square emblazoned with the Greek flag, he sent a message — whether intentionally or not — in a decades-long dispute. The debate over the permanent home of the Parthenon marbles, sometimes referred to as the Elgin marbles in the United Kingdom, has divided public opinion, historians, politicians and two countries. The ancient Greek sculptures once sat atop the Parthenon in Athens before they were removed on the orders of a lord, transported across treacherous waters and sold to the British Museum, where they have remained since 1832....