The study of the historical characteristic of the CHUGOKU area brought about the alternating current with eastern Asia.

本研究明确了中亚地区与东亚交变所带来的历史特征。其目的的方法是将关于交通和档案的意见联系起来。因此，我们在日本海域实施了实地调查，如岩上-银山、滨田、云野津、增田，北部九州地区如卡拉津、平户，南部九州地区如萨摩、大隅和琉球地区。此外，我们还彻底搜索了档案。在这个过程中，我们意识到从东亚带来的工业艺术品是非常重要的资料。因此，我们可以通过历史上的国际交流来证实，现在被称为“边疆”的地区是繁荣的。

This study made clear the historical characteristic of the CHUGOKU area brought about the alternating current with eastern Asia. The method for its purpose was to tie views about the traffic and archives.Therefore, we implemented field investigation in the Japanese sea area, such as IWAMI-GINZAN, HAMADA, YUNOTSU, MASUDA, the northern KYUSHU area, such as KARATSU, HIRADO, the southern Kyushu area, such as SATSUMA, OOSUMI, and the RYUKYU area. Also, we searched archives completely.In these processes, we wakened that industrial art objects which were brought from eastern Asia are very important data.As a result, we could confirm that areas called "the frontier" at present were prosperous by the international exchange on the history.