Kyushu

is the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include Kyūkoku, Chinzei (鎮西, “West of the Pacified Area”), and Tsukushi-no-shima . The historical regional name Saikaidō referred to Kyushu and its surrounding islands. In the 8th century Taihō Code reforms, Dazaifu was established as a special administrative term for the region. As of 2006, Kyushu has a population of 13,231,995 and covers 35,640 square kilometres .