Hassaku

Ｉ read Ryoichi Hasegawa ‘ Chizu kara kieta Shimajima ‘ (Yoshikawakobunkan.)
Nakanotorishima Island was on a map for the first time in 1908. But it was erased form the map in 1946.
Hasegawa researched the island from the birth on the map to the death.
And he says as the background of it there are general world territorial dispute of islands.
Hassaku fruits are growing steadily.