1952 - South Korea becomes a member of the International Civil Aviation Organization.
According to Yonhap News Agency, 1969 - A Korean Air flight from Gangneung to Seoul is hijacked by North Koreans and forced to land in Pyongyang. Out of 51 people aboard, 39 are later repatriated to South Korea after two months.
1990 - South and North Korea convene for their third high-level meeting in Seoul.
1995 - South Korean mountaineer Huh Young-ho successfully scales Vinson Massif, Antarctica's highest peak.
2007 - South and North Korea inaugurate a regular cross-border train service, marking the first such initiative since the end of the 1950-53 Korean War.
2008 - The six-party talks on North Korea's nuclear disarmament end without a consensus on inspection protocols for the North's nuclear sites, leading to uncertainty about the future of these multilateral discussions.
2012 - Kenneth Bae, a Korean-American tourist operator, is detained in North Korea. A computer hard disk found among tourists leads to his interrogation and subsequent 15-year sentence for anti-state activities. He is released in 2014 following a secret visit to Pyongyang by U.S. Director of National Intelligence James Clapper.
2015 - Following an August agreement to ease tensions, South and North Korea hold high-level talks at the Kaesong industrial complex. The talks come after a land mine explosion at the border, which injured two South Korean soldiers and was attributed to North Korea.
2017 - Hanwha Total Petrochemicals Co., a joint venture between Hanwha Group and Total SA, announces a 360 billion won investment to construct a new polyethylene facility in South Korea.
2019 - The United States commences the return of four military bases to South Korea and starts the process of handing over the Yongsan Garrison in central Seoul. This is part of a larger plan to consolidate 26 scattered U.S. military installations into two regions.
2020 - Twelve U.S. military sites, including two areas within the central Seoul Yongsan Garrison, are returned to South Korean control.