The trend of events was thus bringing about a recognition of the place of the community in the life of rural people, when the Great War hastened this process by many years. Liberty Loan, Red Cross, and other war "drives" were organized by communities which vied with each other in raising their quotas. A new sense of the unity of the community was brought about by the common loyalty to its boys in the nation's service. Having created state and county councils of defense, national leaders came to appreciate that the primary unit for effective organization for war purposes must be the community, and President Wilson wrote to the State Councils of Defense urging the organization of community councils. Thousands of these had been organized when the Armistice was declared, and although most of them were not continued, the importance of the local community was given national recognition and attention was directed to the need of the better organization of local forces for community progress. What, then, is the rural community? Is it a real entity or is it merely an idea or an ideal? Where is it and how can we recognize it? We are indebted to Professor C. J. Galpin, now in charge of the Farm Life Studies of the United States Department of Agriculture, for first developing a method for the location of the rural community. Professor Galpin[1] holds that the trading area tributary to any village is usually the chief factor in determining the community area. He determines the community area by starting from a business center and marking on a map those farm homes which trade mostly at that center. By drawing a line connecting those farm homes farthest from the center on all the roads radiating from it, the boundary of the trade area is described. In the same way the areas tributary to the church, the school, the bank, the milk station, the grange, etc., may be determined and mapped. The boundaries of these areas will be found to be by no means coincident, but it will usually be found that most of them center in one village or hamlet, and that the trade area is the most significant in determining the area tributary to this center. When the areas served by the chief institutions of adjacent centers are mapped, it is usually found that a composite line of the different boundary lines separating these centers will approximate the boundaries of the communities. A line which divides adjacent community areas so that most of the families either side of this line go most frequently to, or their chief interests are at, the center within that boundary, will be the boundary between the adjacent communities. Thus, from the standpoint of location, _a community is the local area tributary to the center of the common interests of its people._[2]