South Korean standard language

The South Korean standard language or Pyojuneo is the South Korean standard version of the Korean language. It is based on the Seoul dialect, although various words are borrowed from other regional dialects. It uses the Korean alphabet, created in December 1443 CE by the Joseon-era king Sejong the Great. Unlike the North Korean standard language (문화어), the South Korean standard language includes many loan-words from Chinese, as well as some from English and other European languages.

History
When Korea was under Japanese rule, the use of the Korean language was regulated by the Japanese government. To counter the influence of the Japanese authorities, the Korean Language Society (한글 학회) began collecting dialect data from all over Korea and later created their own standard version of Korean,, with the release of their book Unification of Korean Spellings (한글 맞춤법 통일안) in 1933.