Ulleungdo and Dokdo
From Isabu’s conquest of Usan-guk to Imperial Decree No. 41 — two East Sea islands recorded as Korean throughout

Morales9199 · CC BY-SA 3.0 · Source
From Isabu’s conquest of Usan-guk to Imperial Decree No. 41 — two East Sea islands recorded as Korean throughout

Morales9199 · CC BY-SA 3.0 · Source
| Era | Event | Details |
|---|---|---|
| Silla, Jijeung | Isabu conquers Usan-guk | Wooden lions force surrender |
| Joseon, Seongjong | Dongguk yeoji seungnam | Usando (Dokdo) on the Paldo chongdo map |
| Joseon, Sukjong | An Yong-bok goes to Japan | Shogunate bans Japanese voyages there |
| Joseon, Gojong | Ulleungdo resettled | Inspector Yi Gyu-won; settlers move in |
| Korean Empire | Imperial Decree No. 41 | Uldo County governs Seokdo (Dokdo) |
| Korean Empire | Japan’s illegal incorporation | Shimane notice during Russo-Japanese War |
Under King Jijeung, the general Isabu sailed with wooden lions to frighten the islanders of Usan-guk (Ulleungdo) into submission.
By order of King Seongjong, No Sa-sin, Seo Geo-jeong, Yang Seong-ji and others compiled the Dongguk yeoji seungnam, a geography recording the history, landscape, customs and notable people of every county.
After clashing with Japanese fishermen on Ulleungdo, An Yong-bok travelled to Japan twice to assert that Ulleungdo and Dokdo belonged to Joseon.
With Japanese entering Ulleungdo to cut timber, the Joseon government sent Yi Gyu-won as inspector and then decided to resettle the island.
The Korean Empire raised Ulleungdo to Uldo County and declared in its official gazette that the county governed all of Ulleungdo, Jukdo and Seokdo (Dokdo).
In the midst of the Russo-Japanese War, Japan declared Dokdo "ownerless land", named it Takeshima and quietly annexed it by a Shimane Prefecture notice. The Korean government regards this as an illegal incorporation.

Silla general who subdued Usan-guk with wooden lions and later conquered Daegaya
Twenty-second ruler of Silla, who fixed the names Silla and wang (king), promoted ox ploughing and annexed Usan-guk

Ninth king of Joseon, who completed the Gyeongguk daejeon code and promoted Sarim scholars
Scholar-official under Seongjong who led the compilation of the Dongguk tonggam, Dongguk yeoji seungnam and Dongmunseon

Fisherman from Dongnae who went to Japan to assert that Ulleungdo and Dokdo belonged to Joseon


Radical reformer who led the 1884 coup, fled to Japan and was assassinated in Shanghai