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| | Other Information of- Dokto. (Site not responding. Last check: 2007-11-04) |
 | | South Korea classifies the islets as a part of Ulleung County, Gyeongsangbuk-do Province, while Japan classifies them as part of Okinoshima, Shimane, Oki District, Shimane, Shimane Prefecture. |
 | | In 1432, geographical records from Sejong Sillok (the chronicle of Sejong the Great of Joseon) mentions Usan-do, but interpretation of the context is disputed. |
 | | On October 25, 1900, the Korean Empire issued, incorporating the islands of Ulleung-do, Juk-do (竹島), and Seok-do (石島) into Ulleung county. |
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