Korea created its present day boundaries during the Kingdom of Joseon (1392-1897). However, Korea is currently split into North and South Korea, and many do not even refer to it as a country anymore.
Folklore say about 5000 years ago.
There's nothing that says this is categorically wrong.
Korea Yakult was created in 1969.
Energizer Korea was created in 1996.
Korea Girl was created in 1996.
Communications Korea was created in 1987.
SolarPark Korea was created in 2008.
GM Korea was created in 1937.
The Crime of Korea was created in 1950.
F.C. Korea was created in 1961.
Citibank Korea was created in 1983.
Massacre in Korea was created in 1951.
A Hill in Korea was created in 1956.
Korea Polytechnics was created in 2006.