A map made by a Japanese national institute marks the Dokdo islets as Korean territory.

This map made public by the Dokdo Institute, a university research center on the Dokdo islets, was drawn in 1903 by a Japanese national institute. It includes the Dokdo islets and Ulleung Island as Korean territory when marking the Korea-Japan border. Meanwhile, the map marks Taiwan as Japanese territory after Japan conquered it from its war with China at the time.

The research center slammed the Japanese government’s intensifying territorial claim over South Korea’s easternmost islets of Dokdo in its education of students even after it acknowledged the islets are Korean on its own map.

The map was requested for analysis by the Dokdo Institute for a Dokdo-related artifacts collector late in 2009.