From time to time since the middle of the nineteenth century various efforts have been made to codify international law. Most of these have dealt with administrative and international private law (the conflict of laws) and more particularly with the laws of war and neutrality. Some of these efforts, particularly those of jurists of the Western Hemisphere, have, included in their scope the whole field of public and private international law. It was, however, left for the League of Nations to launch upon a world-wide effort to place in code form those rules which are regarded as the body of law on three important subjects of public international law. These efforts culminated in the Codification Conference held at The Hague from March 13 to April 12, inclusive, 1930. The three subjects before that Conference were Nationality, Territorial Waters, and Responsibility of States for Damage Caused in Their Territory to the Person or Property of Foreigners.