Korean language
Korean (한국어/조선말, see below) is the official language of both South Korea and North Korea, as well as one of the two official languages in China's Yanbian Korean Autonomous Prefecture. About 80 million people speak Korean worldwide.
Historical linguists classify Korean as a language isolate. The idea that Korean belongs to a putative Altaic language family has been generally discredited. The Korean language is agglutinative in its morphology and SOV in its syntax.
For over a millennium, Korean was written with adapted Chinese characters called hanja, complemented by phonetic systems such as hyangchal, gugyeol, and idu. In the 15th century, Sejong the Great commissioned a national writing system called Hangul, but it did not become a legal script to write Korean until the 20th century when the Japanese government in Korea was established. This happened because of the yangban aristocracy's preference for hanja.
History
Korean is descended from Proto-Korean, Old Korean, Middle Korean, and Modern Korean. Since the Korean War, through 70 year's of seperations North–South differences have developed in standard Korean, including variance in pronunciation, verb inflection, and vocabulary chosen.