Kim Il-sung's birthday had been designated as a provisional holiday in 1962. It became official 1968, the year that saw great expansion of his cult of personality in the aftermath of a domestic political crisis known as the Kapsan Faction Incident.[13] In 1974, the day was promoted the most important holiday of the country.[10] It was designated as "The Day of the Sun" on 8 July 1997, the third anniversary of the death of Kim Il-sung,[7] in a resolution by the Central Committee of the Workers' Party of Korea, the Central Military Commission, the National Defence Commission,[4] the Central People's Committee and the Administration Council of the Democratic People's Republic of Korea.[15] On the same occasion, North Korea adopted the Juche calendar which begins on the year of Kim Il-sung's birth. The purpose of the Day of the Sun was to celebrate "the greatest festival for the Korean nation," and to initiate a holiday which would be of equal importance to North Koreans as Christmas is in many other places.[7]