Yu Kil-chun

Yu Gil-chun (Korean: 유길준; November 21, 1856 – September 30, 1914) was a Korean politician. Yu lived during the last few decades of Joseon and the Korean Empire, before the occupation of the peninsula by Japan. As a young man, he studied the Chinese classics. Unusually for the time, he came to embrace foreign ideas and literature.
Yu achieved a number of notable firsts: in 1883, he was among the first Koreans to visit the United States. He was also the first Korean to study abroad in Japan and the first in the United States. He also wrote some of the earliest books and translations on Western topics in contemporary Korean, which significantly impacted the reform movement in the Korean Empire. He is also remembered for his contributions to Korean linguistics.
Yu was among the earliest Korean independence activists and reformers. He proposed numerous changes to modernize the Korean government, including the establishment of a constitutional monarchy and increased popular participation in government. This brought him into conflict with the Korean monarchy, who forced him to flee to Japan. There, he orchestrated a coup against the Korean monarchy that failed. By the time he was eventually pardoned and allowed to return to the peninsula, it was already firmly under Japanese influence. He fell into a depression and died several years after the formal beginning of the occupation of Korea.
Yu is now remembered as a chinilpa or collaborator with Japan. In the aftermath of the assassination of Empress Myeongseong, he was named one of the Eulmi Four Traitors that assisted in her death.