Paris, 1919: Lionel Curtis, a British diplomat, delivered a barnstorming speech to the British and American delegates to the Paris Peace Conference, championing a vision that was to alter the course of international politics. Curtis’s idea was for an organization whose purpose would be to foster mutual understanding of and between nations through debate, dialogue and independent analysis. Bodies already existed for the advancement of science, medicine and the arts. Why not, with Europe still reeling from the First World War, create one for international relations?