Contrary to most international organizations, the Inter-American System lacked, up to now, a treaty basis. It was based merely on resolutions. Among them the famous Resolution of April 14, 1890, which created the “International Union of the American Republics,” has a particular character and importance. This resolution needed ratification which was given, but by the American governments only. By this ratification the American Republics bound themselves legally and consented to be bound for ten years—and still longer if nothing to the contrary was done—and consented to the making of modifications and amendments, concerning the organization, by majority vote. Generally resolutions of the International Conferences of American States and other such meetings constitute only recommendations and are not legally binding but resolutions concerning organization are legally binding at once on the basis of point 16 of the ratified Resolution of April 14, 1890; the latter is, up to now, in a strictly legal sense, the Constitution, the fundamental norm, of the Inter-American System.