1948 The South Korean constitution is proclaimed.
1950 Korean War: Troops from the People's Republic of China launch a massive counterattack in North Korea against South Korean and United Nations forces (the Battle of the Ch'ongch'on River and the Battle of Chosin Reservoir), ending any hopes of a quick end to the conflict.
1973 Kim Dae-Jung, a South Korean politician and later president of South Korea, is kidnapped.
1974 78 die when the Time Go-Go Club in Seoul, South Korea burns down. Six of the victims jumped to their deaths from the seventh floor after a club official barred the doors after the fire started.
1983 Rangoon bombing: attempted assassination of South Korean President Chun Doo-hwan during an official visit to Rangoon, Burma. Chun survives but the blast kills 17 of his entourage, including four cabinet ministers, and injures 17 others. Four Burmese officials also die in the blast.
1996 Start of the largest strike in South Korean history.
2003 Nearly 200 people die in the Daegu subway fire in South Korea.
2007 The ''Hebei Spirit'' oil spill begins in South Korea after a crane barge being towed by a tug collides with the Very Large Crude Carrier, ''Hebei Spirit''.