Hangul (Korean: 한글, hangeul or hangǔl) is the native alphabet of the Korean language, as opposed to the non-alphabetic hanja system borrowed from China.
While Hangul may look like logographic Chinese writing to some, it is actually a phonemic alphabet organized into syllabic blocks. Each block consists of at least two of the 24 Hangul letters (jamo): at least one each of the 14 consonants and 10 vowels. Historically, the alphabet had several additional letters (see obsolete jamo). For a phonological description of the letters, see Korean phonology.
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RFC 1557 - Korean Character Encoding for Internet Messages - Describes the ISO-2022-KR encoding method being used to represent Korean characters in both header and body part of the Internet mail messages.