Day of the Shining Star
Kim Jong-il was born in February 1941 to Kim Il-sung and Kim Jong-suk in Siberia in the Russian Federal Republic, Soviet Union where his father had been in exile because of his guerilla activities. North Korean propaganda, however, dates Kim Jong-il's birth to 16 February 1942 and locates it at the Mount Paektu area in Korea, the mythical place of origin of the Korean people, where Kim Il-sung supposedly ran a guerilla camp. In reality, the guerillas were based in Manchuria at the time and Kim himself had been to the Soviet Far East before and after Kim Jong-il's birth.
Birthday
In North Korea, people do not celebrate birthdays on July 8 and December 17 because these were the dates of the deaths of Kim Il-sung and Kim Jong-il, respectively. More than 100,000 North Koreans celebrate displaced birthdays on July 9 or December 18 to avoid these dates. A person born on July 8 before 1994 may change their birthday, with official recognition. Kim Il-sung's birthday, Day of the Sun, is the most important public holiday of the country, and Kim Jong-il's birthday is celebrated as Day of the Shining Star.