Hanja

Hanja (Korean: 한자; Hanja: 漢字; IPA: [ha(ː)ntɕ͈a]), alternatively spelled Hancha, are Chinese characters used to write the Korean language. After characters were introduced to Korea to write Literary Chinese, they were adapted to write Korean as early as the Gojoseon period. Hanjaeo (한자어; 漢字語) refers to Sino-Korean vocabulary, which can be written with Hanja, and hanmun (한문; 漢文) refers to Classical Chinese writing, although Hanja is also sometimes used to encompass both concepts. Because Hanja characters have never undergone any major reforms, they more closely resemble traditional Chinese and traditional Japanese characters, although the stroke orders for certain characters are slightly different. Such examples are the characters 教 and 敎, as well as 研 and 硏. Only a small number of Hanja characters were modified or are unique to Korean, with the rest being identical to the traditional Chinese characters. By contrast, many of the Chinese characters currently in use in mainland China, Malaysia and Singapore have been simplified, and contain fewer strokes than the corresponding Hanja characters. Until the contemporary period, Korean documents, history, literature and records were written primarily in Literary Chinese using Hanja as its primary script. As early as 1446, King Sejong the Great promulgated Hangul (also known as Chosŏn'gŭl in North Korea) through the Hunminjeongeum. It did not come into widespread official use until the late 19th and early 20th century. Proficiency in Chinese characters is, therefore, necessary to study Korean history. Etymology of Sino-Korean words is reflected in Hanja. Hanja were once used to write native Korean words, in a variety of systems collectively known as idu, but, by the 20th century, Koreans used hanja only for writing Sino-Korean words, while writing native vocabulary and loanwords from other languages in Hangul, a system known as mixed script. By the 21st century, even Sino-Korean words...