Seo Jae-pil (Korean: 서재필; Hanja: 徐載弼; January 7, 1864 – January 5, 1951), better known by his English name Philip Jaisohn, was a Korean American politician, physician, and Korean independence activist. He was the first Korean to become a naturalized citizen of the United States. He also founded the Tongnip sinmun, the first Korean newspaper written entirely in Hangul.
Jaisohn was one of the organizers of the failed Kapsin Coup in 1884. He was thus convicted for treason and sought refuge in the United States where he became a citizen and earned a medical doctorate. Upon returning to Korea in 1895, Jaisohn was offered a position as a chief advisor of the Joseon government. He declined, choosing to focus on reform movements where he advocated for democracy, Korean independence and self reliance from foreign intervention, numerous civil rights and universal suffrage. Jaisohn was forced to return to the United States in 1898, from where he participated in the First Korean Congress and advocated for the March First Movement and U.S. Government support for Korean independence. Jaisohn became a chief advisor to the United States Army Military Government in Korea after World War II and was elected as an interim representative in South Korea in the 1946 legislative election.
