For the last two centuries, the British Museum in London has claimed ownership of the Elgin Marbles without producing documentation that can establish beyond reasonable doubt that Lord Elgin, a Scottish diplomat, legally acquired the Parthenon sculptures from the Ottoman Empire in the 19th century. Historians have struggled to ascertain the facts in what some consider the world’s most infamous case of cultural theft. Meanwhile, British authorities have consistently denied assertions that the Athenian antiquities could have crossed borders without approval from the Turks, who ruled Greece during the early 19th century.