The population growth in Okinawa Prefecture is classified into three phases as a whole, i. e. a stagnation from 1920 to 1944, an upheaval due to the cease of World War II, and a diversification among regions after 1950. The diversification after 1950 is restatable as the rapid growth of urban populations and the stagnation or decrease of rural or small islands populations. The distance from the central part of population increase to each administrative regions has been related to the pattern of population growth in each regions, and as such centers, three areas; urbanized area in central and southern parts of Okinawa Island, Hirara City and its neighbour, and Ishigaki City, are denoted.

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We analyzed the consumed foods in an era of early Showa (1936-1937), based on a "diary of farmer's diet of Kikaijima", an island near Amamioshima, written by Kaichiro Koshirae for one year. For analysis a computer with BASIC language was used. One different food in a diet was counted one food. There were 888 diets, in which 154 foods were described. The average number of foods described in a diet was 4.3 2.0, and the most number of foods consumed in a diet were 20. Miso was most consumed with a frequency of 588, consisting of 66.5% of all the diets, to which rice, sweet potatoes, rice porridge, etc. followed. Also a cycad-starch gluel was consumed frequently. The intake frequency of the individual fishes and vegetables was low. The foods with only one frequency were 47. When foods were classified into 18 groups according to the standard tables of food composition in Japan, cereals had 797 frequencies, and the followings were pulses (736), potatoes and starches (385), seasonings and spices (326), vegetables (243), fishes (243), and meats (190). Fruits had only one frequency, and milks, none. A variety of vegetables, fishes, sweets, meats and cereals were counted 33, 31, and 13, respectively. Nuts and seeds, fungi, eggs, and fats and oils were few in its varieties. According to the ABC analysis of the foods, 9foods occupied 50% of all the frequencies, and 22 foods, 75%. The consumed foods were not so many compared to those of present days, reflecting the food habit at that time.

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  In Japan, it is said that Okinawans are very enthusiastic in their support for the Okinawan national high school baseball teams in the National High School Baseball Championship, commonly known as Summer Koshien (hereinafter referred to as "Koshien championship"). In fact, when the Okinawa national teams are competing, it is reported that "the number of automobiles on the road reduces," "some individuals take a day off from work," and "crowds of people gather in front of televisions set up in public locations." On the other hand, there have been no attempts to survey the people of Okinawa prefecture and clarify the factors of this phenomenon, and academic understanding and clarification of this phenomenon have not progressed. Therefore, this research aims to understand the emotions and behaviors of the Okinawan people in terms of their support for the Okinawa national teams in Koshien championship from the viewpoint of sport consumer behavior, taking into account historical and cultural backgrounds. The results suggest that while some factors of Okinawans' support for the Okinawa national teams can be adequately explained by previous research on sport consumer behavior, there are also areas of significant divergence, and a major factor explaining the uniqueness of the divergence is the historical and cultural background, including attitudes toward the rest of the regions.

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