medical facility. Chejungwon (제중원) was renamed Severance Hospital after him. Chejungwon (later Severance Hospital) was primarily a hospital, but it also performed medical education as an attachment. The hospital admitted its first class of 16 medical students selected through examinations in 1886, one year after its establishment. By 1899, Chejungwon Medical School was independently recognized. Following the increase of diversity in missionary denominations in Korea, collaboration began to form. Chejungwon began to receive medical staff, school faculty, and financial support from the Union Council of Korean Missionaries (한국연합선교협의회; 韓國聯合宣敎協議會) in 1912. Accordingly, the medical school was renamed as Severance Union Medical College in 1913. The rest of Yonsei University traces its origins to Chosun Christian College, which was founded on March 5, 1915, by an American Protestant missionary, Horace Grant Underwood sent by the church. Underwood became the first president, and Avison became the vice president. It was located at the YMCA. Courses began in April with 60 students and 18 faculty members. Underwood died of illness on October 12, 1916, and Avison took over as president. During World War I & II On August 22, 1910, Japan annexed Korea with the Japan–Korea Treaty of 1910. The first Governor-General of Korea, Terauchi Masatake, introduced the Ordinance on Chosun Education (조선교육령; 朝鮮敎育令) in 1911, and subsequently Regulations on Professional Schools (전문학교 규칙) and Revised Regulations on Private Schools (개정사립학교 규칙) in March, 1915. These were intended to stifle private education in Korea; any establishment of schools, any change in school regulations, location, purpose, coursework, or textbooks must all be reported to and authorized by the governor-general, and all courses must be in Japanese. Severance Union College struggled to meet these requirements; school regulations and coursework were altered, faculty evaluated and enlarged, its foundation and its board clarified. It received its recognition as a professional medical school on May 14, 1917. In 1922 the governor-general Makoto Saito issued Revised Ordinance on Chosun Education (개정조선교육령). It called for stricter qualifications for the faculty, and Severance reacted obediently and further recruited more members with degrees from accredited institutions in North America and Europe. Japan did not completely ignore the competence of this institution; in 1923, Severance recovered its right to give medical licenses to its graduates without state examination, a right which had been lost since 1912. Moreover, in March 1934, the Japanese Ministry of Education and Culture further recognized Severance in allowing its