History 2000s 1990s 1980s 1970s 1988 September 12, Completion of 1st and 2nd annexes of Algok-seongjeon 1987 November 8, Algok-seongjeon Consecration 1984 December 5, Publication of Echo of Eden, Book 7 1981 February 25, Publication of Echo of Eden, Book 6
