International organization is not a new concept in the minds of men, but the creation of most of the international organizations now in existence has occurred within the memory of many who are by no means our oldest citizens. Before the last war, it was not too difficult for the interested layman, the scholar, the government official, or the teacher to keep abreast of new ideas and new philosophies. He watched the League of Nations, the Pan American Union, and a handful of specialized organizations like the Postal Union or the International Institute of Agriculture, and felt reasonably safe in his conviction that he could qualify as an intelligent citizen or even, at times, a teacher.