 On the way to Ulleung-do, Japanese fishermen sometimes used islands called in Japanese as an intermediate port of call.In 1677 a retainer by the name of Saito Hessen compiled the "Onshu shicho goki" ("Records on Observations in Oki Province"), a set of records based upon observations he had made under orders from the "daimyō" of Izumo (Unshū).As this report was compiled from a Japanese geographical perspective, Japanese scholars argue that Matsushima (the closer island) refers to Liancourt Rocks and Takeshima (the farther island) refers to Ulleungdo.