As part of the movement to develop an integrated curriculum and the education reform movement of the late 1980s, the entire Course of Study for Lower-Secondary Schools was revised in 1989 and took effect in the 1992–93 school year. A main aim of the reform is to equip students with the basic knowledge needed for citizenship. In some measure, this means increased emphasis on Japanese history and culture, as well as understanding Japan as a nation and its relationships with other nations of the world. The course of study also increased elective hours, recommending that electives be chosen in light of individual student differences and with an eye toward diversification.