Kyunggi High School (Korean: 경기고등학교; Hanja: 京畿高等學校) is the oldest modern high school in Korea, located in Gangnam District, Seoul. The school is an all-boys school, and its counterpart is Kyunggi Girls' High School, also located in Gangnam District, Seoul. Kyunggi High School has educated many leaders of the South Korean society. It is the "K" in the so-called "K-S mark," an informal reference to educational credentials said to ensure career success, with the "S" standing for Seoul National University. Before the abolition of the high-school entrance exams in 1974, it was the highest-ranked school in the country. Alumni associations for the school are widespread throughout Korea and abroad. Famous alumni may be found in all sectors of society and include many past and present politicians (as well as four prime ministers), high-ranking government officials, award-winning scientists and scholars, business executives and national athletes. Source: Wikipedia (en)