In the battle over cultural heritage, repatriation claims based strictly on national origin are more than just denials of cultural exchange: they are also arguments against the promise of encyclopedic museums — a category that includes the Metropolitan Museum of Art, in New York; the British Museum, in London; and the Louvre, in Paris. By presenting the artifacts of one time and one culture next to those of other times and cultures, encyclopedic museums encourage curiosity about the world and its many peoples.

They also promote a cosmopolitan worldview, as opposed to a nationalist concept of cultural identity. In an era of globalization that is nonetheless marked by resurgent nationalism and sectarianism, antiquities and their history should not be used to stoke such narrow identities. Instead, they should express the guiding principles of the world’s great museums: pluralism, diversity, and the idea that culture shouldn’t stop at borders — and nor, for that matter, should the cosmopolitan ideals represented by encyclopedic museums.

Rather than acquiesce to frivolous, if stubborn, calls for repatriation, often accompanied by threats of cultural embargoes, encyclopedic museums should encourage the development of mutually beneficial relationships with museums everywhere in the world that share their cosmopolitan vision. Cultural property should be recognized for what it is: the legacy of humankind and not of the modern nation-state, subject to the political agenda of its current ruling elite.