In the 1960s, under the influence of the "Juche" ideology, came a big change in linguistic policies in North Korea. On 3 January 1964, Kim Il-sung issued his teachings on "A Number of Issues on the Development of the Korean language" (), and on 14 May 1966 on the topic "In Rightly Advancing the National Characteristics of the Korean language" (), from which the "Standard Korean Language" () rules followed in the same year, issued by the National Language Revision Committee that was directly under the control of the cabinet.