Korean orthography
New Korean Orthography
North Korean orthography of the Korean language, published in 1948 and in force until 1954; introduced six additional Hangul letters
Proposal for a Unified Korean Orthography
orthography for the Korean language, published in 1933; basis for the current South-Korean and North-Korean orthographies
Hangul orthography
orthography of the Korean language used in South Korea
Korean Orthography for Elementary Schools
orthography for the Korean language, promulgated by the Japanese colonial government in 1912; first modern orthographical standard for Korean