The following 1790 Japanese map "A Map of China and Surroundings(華夷一覧図) "by Kimura Kenkado(木村蒹葭堂) shows Ulleungdo (竹シマ = 竹島 - Takeshima) and Liancourt Rocks (松シマ = 松島) as Japanese territory, based on the color of the islands.
In 1696, after the dispute on the sovereignty over Ulleungdo between Choson, Bakuhu published the ordinance prohibiting voyages to Takeshima ( today's Ulleungdo, not Takeshima/Dokdo). Though Bakufu prohibited (note : not renounced ) two families(Ohya and Murakawa clan) from going to Ulleundo, Matsushima(today's Takeshima/Liancourt Rocks) were not included. Moreover, it is well known that many Japanese kept recognizing both islands within their territory as this maps shows.
After the Meiji restoration, the names of the islands got confused from the mismapping of non-existant Argonaut in western maps, especially Seibold's. In 1877, Japanese Meiji government officially renounced the sovereignty over Ulleungdo by the Dajokan order (太政官指令). Korean claims that the sentence "Takeshima and another island were not Japanese territory"in the order means Ulleungdo and Takeshima/Liancourt Rocks/Dokdo.
However, in 1881, Kitazawa, the MOFA official, investigated the confused situation and concluded that "Matsushima" was Ulleungdo and the island that was being called "Takeshima" was Ulleungdo's neighboring island of Jukdo, which is about two kilometers off Ulleungdo's northeast shore. He said that the two islands were not Japanese territory. In the end, the "Takeshima and another island " which Japanese government renounced in 1877, were confirmed to be Ulleungdo and Jukdo afterall.
In 1905, Japanese government officially incorporated Takeshima into Shimane prefecture, because there were no traces of occupation by any other countries except for Japanese fishermen Nakai's business seal hunting hut and economical activity.
Kimura Kenkado(木村蒹葭堂 : 1736～1802) was born as a descendant of a sake brewer and well informed especially in natural history. He studied Dutch, Latin, did writings and drew pictures. He was a synonym of extensive learning and versatile talent. He knew a lot of writers and artists and his residence was a saloon of men of culture. Nagakubo Sekisui(長久保赤水), a famous geographer, was one of them.