Nagasaki produced a large amount of coal for a number of years before that industry ended. The population subsequently declined and development proceeded slowly.
The region became uninhabited, and was prohibited from access. Nagasaki, the present holder of the island, prepared visitors routes and it became possible to land on the island only recently, beginning April 2009. The island was nominated to the interim list of the World Heritage as an “Industrialization Monument in the Kyushu/Yamaguchi District” in September 2008. It is hoped more people will visit.