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Yi Sang-seol

1871 – 1917

Korean politician

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About Yi Sang-seol

Lived 1871 – 1917 (aged 46). Yi Sang-seol was a Korean mathematician.

Yi Sangsŏl (; December 7, 1870 – April 1, 1917), also known as Yi Sang-seol, was a Korean civil servant and independence activist.

Biography Yi Sangsŏl was born on December 7, 1870, in Jincheon, Chungcheong, Joseon. His biological father was Yi Haeng-u. He was famous for his brightness, so in 1876, at the age of 7, he was adopted into Yi Yong-u's family and he relocated to Seoul. In 1896, he became a professor at Seonggyungwan.

In 1904, when the Empire of Japan demanded the reclamation right of wasteland, he made an appeal to the king to refuse this. Upon the enacting of the Japan–Korea Treaty of 1905, he made an appeal to the king to oppose the treaty and execute the Five Eulsa Traitors. When this did not happen, Yi left his office as professor and attempted suicide.

From then on, he took initiative in restoring national rights through the patriotic enlightenment movement. In 1907 he and his compatriots Yi Chun and Yi Wijong were delegated by Emperor Gojong to attend the Second Hague Peace Conference in The Hague. He was commissioned to announce to the international community that Korea was an independent state and that the Japanese invasion was unlawful. The trio traveled for two months on the Trans-Siberian Railway to The Hague.

The Korean delegation was not officially invited, although the Netherlands initially planned to invite them. The Japanese government had been able to step in, succeeding in convincing the other delegates of the conference not to let Korea participate. The mission, therefore, had already failed. However, the three Koreans succeeded in receiving worldwide attention due to a press conference by an independent newspaper which covered the Peace Conference. The direct result of their mission was that the Korean Emperor Gojong was forced to resign in favor of his son Sunjong. In 1910, Yi founded 13 douigun (13도의군) troops against the Empire of Japan with Yoo In-seok, Yi Beom-yun, and Yi Nam-gi, intended to unite loyal troops and fight a more effective war against Japan. In 1917, at the age of 47, he died in Ussuriysk (at that time named Nikolsk). He left a will, the contents of which were to burn his body and keepsakes, and not perform ancestral rites. Per his will, his body and library were burnt.

Legacy In 1962, Government of South Korea conferred the Order of Merit for National Foundation (Order of the President) on Yi to honor his meritorious deeds.

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Important facts

Birth century
Occupation
Nationality
Also known as
Sangsul Yi

Contemporaries

People whose lives overlapped Yi Sang-seol's

Frequently asked questions

Who was Yi Sang-seol?

Korean politician (1870–1917)

When was Yi Sang-seol born?

Yi Sang-seol was born on 27 January 1871.

When did Yi Sang-seol die?

Yi Sang-seol died on 2 March 1917.

What was Yi Sang-seol's occupation?

Yi Sang-seol was a mathematician.

What nationality was Yi Sang-seol?

Yi Sang-seol was Korean.

Sources & further reading

· Wikipedia: Yi Sang-seol

· Wikidata: Q12611648

· DBpedia: Yi Sangsŏl

Cite this page

APA: Biography.guide. (2026). Yi Sang-seol. https://biography.guide/yi-sang-seol/

MLA: "Yi Sang-seol." Biography.guide, https://biography.guide/yi-sang-seol/.

Chicago: "Yi Sang-seol." Biography.guide. https://biography.guide/yi-sang-seol/.

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