I investigated the history of the definition of home economics in the U.S. and Japan. In the U.S., the definition from the Lake Placid Conference of 1902,has continued as the foundamental definition. In an early period after World War II, Japanese home economists proposed a lot of definitions, but they were chaotic. In 1970,an official definition was established by the Japan Society of Home Economics. It was the first common definition for all of the home economists in Japan. It had one of the strongest expressions of home economics and had exceeded the view points of the Lake Placid Conference. In 1984,a new definition was implemented. It was not clearer than the 1970 definition, but discussions have ceased to take place around this issue
