Question: Chang Ucchin was born in korea during a time that ended with the conclusion of what? 

full_context: Document 1: Ahn Changho: Ahn Changho, sometimes An Chang-ho (] ; Hangul: 안창호 ; Hanja: 安昌浩 , November 9, 1876 - March 10, 1938) was a Korean independence activist and one of the early leaders of the Korean-American immigrant community in the United States. He is also referred to as his pen name Dosan (도산; 島山 ] ). He established the Shinminhoe (New Korea Society) when he returned to Korea from the US in 1907. It was the most important organization to fight the Japanese occupation of Korea. He established the Young Korean Academy (흥사단; 興士團) in San Francisco in 1913 and was a key member in the founding of the Provisional Government of the Republic of Korea in Shanghai in 1919. Ahn is one of two men believed to have written the lyrics of the Aegukga, the South Korean national anthem. Besides his work for the Independence Movement, Dosan wanted to reform the Korean people's character and the entire social system of Korea. Educational reform and modernizing schools were two key efforts of Dosan. He was the father of actor Philip Ahn and U.S. Navy officer Susan Ahn Cuddy.
Document 2: Choi Byung-hoon: Choi Byung Hoon (최병훈) (born 1952 in Kangwondo, South Korea) is a South Korean artist. He is considered by many to be the father of Contemporary Korean Design. Choi graduated from the Hong-ik University with a degree in applied fine arts in 1974, a few years later he completed his masters of fine arts from Hong-ik. Since his graduation, Choi has become well known for his work in modernizing the traditions of Korean design. Choi gathers inspiration from Mayan, Incan, African and Indian cultures.
Document 3: Korea under Japanese rule: Korea under Japanese rule began with the end of the short-lived Korean Empire in 1910 and ended at the conclusion of World War II in 1945. Japanese rule of Korea was the outcome of a process that began with the Japan–Korea Treaty of 1876, whereby a complex coalition of the Meiji government, military, and business officials sought to integrate Korea both politically and economically into the Empire of Japan. A major stepping-stone towards the Japanese occupation of Korea was the Japan–Korea Treaty of 1905, in which the then-Korean Empire was declared a protectorate of Japan. The annexation of Korea by Japan was set up in the Japan–Korea Treaty of 1910, which was never actually signed by the Korean Regent, Gojong.
Document 4: Seoul Institute of the Arts: Seoul Institute of the Arts (SeoulArts) is a South Korean arts university founded by Yoo Chi-Jin in 1962. The Ansan Campus was completed in February 2001 and is the designated centre of arts education, whilst the Namsan Campus is the center of art experience. SIA has 2400 students in 13 departments. It offers a three-year associate degree program as well as a four-year program for a bachelor's degree. The incumbent president of the university is Yoo Duk-Hyung.
Document 5: Keichi Kimura: Keichi Kimura (1914–1988) was a painter and illustrator who was born in Waiʻanae, Hawaiʻi in 1914. He received his first art instruction from teacher Shirley Russell while attending President William McKinley High School in Honolulu. In 1936, he earned a B.A. from the University of Hawaii at Manoa, where he studied under Henry H. Rempel and Huc-Mazelet Luquiens, and also met fellow art student and future wife, Sueko Matsueda. Keichi continued his education at Chouinard Art Institute (Los Angeles), Columbia University (New York City) and the Brooklyn Museum Art School (New York City). He first exhibited at the Honolulu Museum of Art at 19 years of age. During the Second World War, he served with the 100th Battalion of the 442nd Regimental Combat Team in Italy and France, where he produced many drawings that were also exhibited at the Honolulu Museum of Art. He was divorced from Sueko in 1962 and died in Honolulu in 1988.
Document 6: Student movements in Korea: The first Korean student movement begun in 1919, when students took part in the Sam-il Movement of 1 March to call for the end of Japanese colonization. The student movement has since then played a major part in several big political changes in Korea. Before liberation of Korea from Japanese rule in 1945, the main focus of the student movement was opposing this rule and demanding Korea's independence. After 1945, the student movement was mainly concerned with righting the wrongs in Korean government. Students rose for instance against the South Korea's government of Syngman Rhee after the rigged elections in March 1960. 1980 marked a turning point in the South Korean student movement. After the Gwangju massacre in May 1980, the student movement got a clear vision, partly based on Marxism, and had a pivotal role in the democratization of South Korean society. Student activism is still common on the 21st century South Korean political scene.
Document 7: List of territories occupied by Imperial Japan: This is a list of regions occupied or annexed by the Empire of Japan until 1945, the end of World War II in Asia following the surrender of Japan. Control over all territories except the Japanese mainland (Hokkaido, Honshu, Kyushu, Shikoku, and some 6000 small surrounding islands) was renounced by Japan in the Unconditional Surrender after World War II and the Treaty of San Francisco. A number of territories occupied by the United States (the Supreme Commander for the Allied Powers) after 1945 have been returned to Japan, see Japan–United States relations for details. In 2005, there are still a number of disputed territories with Russia (the Kuril Islands dispute), South Korea (the Liancourt Rocks dispute), the People's Republic of China and Taiwan (the Senkaku Islands dispute). See Foreign relations of Japan for details.
Document 8: Kyung Hee University: Kyung Hee University is a private research university encompassing an educational system from kindergarten to graduate school with campuses in Seoul, Yongin, and Gwangneung (on the outskirts of Namyangju city), South Korea. Kyung Hee University has 24 colleges, 71 departments and majors, 65 master's and 63 doctorate programs, 18 professional and special graduate schools, and 43 auxiliary research institutions. The university counts Slavoj Žižek, Jason Barker and Emanuel Pastreich among its international professors.<ref name="khu.ac.kr/eng/about/news">http://khu.ac.kr/eng/about/news_view.jsp?idx=178&iPage=1</ref>
Document 9: Manchukuo: Manchukuo (: "Mǎnzhōuguó"literally: " State of Manchuria" ) was a puppet state in Northeast China and Inner Mongolia, which was governed under a form of constitutional monarchy. The area, collectively known as Manchuria by westerners and Japanese, was designated by China's erstwhile Qing Dynasty as the "homeland" of the ruling family's ethnic group, the Manchus. In 1931, the region was seized by Japan following the Mukden Incident and a pro-Japanese government was installed one year later with Puyi, the last Qing emperor, as the nominal regent and emperor. Manchukuo's government was abolished in 1945 after the defeat of Imperial Japan at the end of World War II. The territories formally claimed by the puppet state were first seized in the Soviet invasion of Manchuria in August 1945, and then formally transferred to Chinese administration in the following year.
Document 10: Chang Ucchin: Chang Ucchin (26 November 1917 – 27 December 1990) is one of the representatives of modern Korean fine art. Chang was born when Korea was still under Japanese colonial rule. He studied western art at Tokyo's Imperial School of Art. He became a professor of fine arts at Seoul National University in 1954, but resigned to paint full-time from 1960.
Document 11: United States in the Korean War: At the conclusion of World War II the Allied nations began the process of disarmament of Axis controlled regions. Japan occupied Korea at this time and had been in control since 1910. In 1945, the decision was made to have American Marines forces oversee Japanese surrender and disarmament south of the 38th parallel and the Soviet Union would facilitate the change of power to the north. At the time there was no political motivation and seemed to be a logical and convenient plan of action. The original agreement and intent was to create a unified and independent Korea out of the post Japanese occupation era. Instead each side of the 38th parallel established its own government under the influence of the occupational country; the United States in South Korea and the Soviet Union in North Korea. Both new Korean governments discredited the other and claimed to be the only legitimate political system. Tensions between the North and South escalated and each side began to petition foreign powers for resources and support. South Korea wanted weapons and supplies from Truman and the United States government while North Korea sought help from Stalin and the Soviet Union. The United States was still war weary from the disruptive World War II campaign and refused South Korea's request for weapons and troops. North Korea convinced the Soviet Union to supply them with the weapons and support they requested. This decision coincided with the United States withdrawing the last remaining combat troops from South Korea. North Korea saw its opportunity and attacked South Korean forces at the 38th parallel on June 25, 1950 and thus initiating the Korean War.
Document 12: Japanese Instrument of Surrender: The Japanese Instrument of Surrender was the written agreement that formalized the surrender of the Empire of Japan, marking the end of World War II. It was signed by representatives from the Empire of Japan, the United States of America, the Republic of China, the United Kingdom of Great Britain and Northern Ireland, the Union of Soviet Socialist Republics, the Commonwealth of Australia, the Dominion of Canada, the Provisional Government of the French Republic, the Kingdom of the Netherlands, and the Dominion of New Zealand. The signing took place on the deck of USS "Missouri" in Tokyo Bay on September 2, 1945.
Document 13: Chang Yong-hak: Chang Yong-hak (25 April 1921 – 31 August 1999) was a Korean writer. Chang was born in Hamyeong Buk-do in what is now North Korea. He studied at Waseda University in Japan, before being drafted into the Japanese army. After the end of World War Two, he taught high school in Korea, writing fiction on the side.
Document 14: Surrender of Japan: The surrender of Imperial Japan was announced on August 15 and formally signed on September 2, 1945, bringing the hostilities of World War II to a close. By the end of July 1945, the Imperial Japanese Navy (IJN) was incapable of conducting major operations and an Allied invasion of Japan was imminent. Together with the British Empire and China, the United States called for the unconditional surrender of the Japanese armed forces in the Potsdam Declaration on July 26, 1945—the alternative being "prompt and utter destruction". While publicly stating their intent to fight on to the bitter end, Japan's leaders (the Supreme Council for the Direction of the War, also known as the "Big Six") were privately making entreaties to the still-neutral Soviet Union to mediate peace on terms more favorable to the Japanese. Meanwhile, the Soviets were preparing to attack Japanese forces in Manchuria and Korea (in addition to South Sakhalin and the Kuril Islands) in fulfillment of promises they had secretly made to the United States and the United Kingdom at the Tehran and Yalta Conferences.
Document 15: Chai-Sik Chung: Chai-Sik Chung (born July 14, 1930 in Wonju, Korea) is an American social ethicist and sociologist of religion. He studied under Walter George Muelder at the Boston University School of Theology, where he served as the Walter G. Muelder Professor of Social Ethics from 1990 to 2011. He also studied under the late Robert N. Bellah at Harvard Divinity School with whom he had been long associated. As a scholar of comparative religious ethics, he has been a pioneer in the study of social and ethical problems arising from East Asia’s modern transformation. He has published widely in both Korean and English, on social and ethical issues involving globalization and encounters between civilizations, particularly those between Korea, East Asian religious traditions and Christianity. His publications include "A Korean Confucian Encounter with the Modern World"; "Korea, Religious Tradition, and Globalization"; "Consciousness and History: Korean Cultural Tradition and Social Change"; "Korean Religion and Society Under Challenge: Continuity and Change"; "The Clash between Korean Confucianism and Modern Western Civilization"; and his culminating work "The Korean Tradition of Religion, Society, and Ethics: A Comparative Historical Interpretation and Looking Beyond".
ground_truth: World War II