South Korea has a long history that dates back to ancient times. There is a myth that it was founded in 2333 B.C.E by the god-king Tangun. Since its founding, however, the area of present-day South Korea was invaded several times by neighboring areas and thus, its early history was dominated by China and Japan. In 1910, after weakening Chinese power over the area, Japan began colonial rule over Korea which lasted 35 years.
At the end of World War II in 1945, Japan surrendered to the Allies which resulted in the end of the country's control over Korea. At that time, Korea was divided into North and South Korea at the 38th parallel and the Soviet Union and the United States began to influence the areas. On August 15, 1948, the Republic of Korea (South Korea) was officially founded and on September 9, 1948, the Democratic People's Republic of Korea (North Korea) was established.
Two years later on June 25, 1950, North Korea invaded South Korea and began the Korean War. Shortly after its beginning, a coalition led by the U.S. and the United Nations worked to end the war and armistice negotiations began in 1951. In that same year, the Chinese entered the conflict in support of North Korea. Peace negotiations ended on July 27, 1953, at Panmunjom and formed the Demilitarized Zone. According to the U.S. Department of State, an Armistice Agreement was then signed by the Korean People's Army, the Chinese People's Volunteers and the United Nations Command which was led by the U.S. South Korea never signed the agreement and to this day a peace treaty between North and South Korea has never officially been signed.
Since the Korean War, South Korea experienced a period of domestic instability which resulted in a change it is government leadership. In the 1970s, Major General Park Chung-hee took control after a military coup and during his time in power, the country experienced economic growth and development but there were few political freedoms. In 1979, Park was assassinated and domestic instability continued through the 1980s.
In 1987, Roh Tae-woo became president and he was in office until 1992, at which time Kim Young-sam took power. Since the early 1990s, the country became more stable politically and has grown socially and economically.