 According to Ashley J. Tellis and Michael Wills, this amendment to the preamble was an indication of the unique North Korean characteristic of being a theocratic state based on the personality cult surrounding Kim Il-sung.In addition, North Korea adopted a Juche calendar dating from 1912, the year of Kim Il-sung's birth.The 2012 Constitution once again referred to Kim Il-sung as the "eternal President of the Democratic People's Republic of Korea".