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BackKey Events in South Korean History on May 21
Key Events in South Korean History on May 21
World
Yonhap News5/20/2026World1 min readSouth Korea

Key Events in South Korean History on May 21

Quick Look

May 21st marks significant events in South Korean history, including post-WWII Korean talks, a military coup, international gatherings, legal precedents for conscientious objectors, mountaineering achievements, and diplomatic summits with the US.

AI-generated summary

Why It Matters

The provided text lists significant historical events that occurred on May 21st in South Korea, spanning from 1947 to 2021. These events cover diplomatic negotiations, political shifts, international gatherings, legal milestones, and mountaineering achievements, often with geopolitical implications.

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May 21

1947 -- The second U.S.-Soviet Joint Commission opens to discuss forming a joint transitional government and trusteeship in Korea. The talks broke off on July 10. The ideological divide between Washington and Moscow that was reflected in southern and northern Korea, respectively, led to the 1950-1953 Korean War.

1961 -- The junta led by Gen. Park Chung-hee announces the arrest of some 2,000 alleged communist sympathizers and 4,200 supposed gangsters nationwide. Park, who just days earlier on May 16 had taken over the country in a military coup and was later to make himself president, conducted a massive manhunt against those critical of his political power.

1989 -- South Korea hosts the annual convention of Rotary International at Seoul Olympic Stadium. About 420,000 participants from 120 nations joined the event.

2004 -- The Seoul Central District Court rules that three military conscientious objectors are not guilty of violating the military service law for the first time. In South Korea, all able-bodied men must complete at least two years of compulsory military service.

2009 -- South Korean female climber Oh Eun-sun climbs the 11th peak of the 14 eight-thousanders in the Himalayas.

2018 -- South Korean President Moon Jae-in heads to Washington for a summit with U.S. President Donald Trump to help broker a nuclear deal between Washington and Pyongyang. Moon's trip came as Trump and North Korean leader Kim Jong-un were set to hold their first-ever summit on June 12.

2021 -- South Korean President Moon Jae-in and his American counterpart, Joe Biden, agree on the importance of a stronger alliance between their nations, in their first-ever summit at the White House in Washington.

Open Questions

  • What were the specific outcomes of the 1947 U.S.-Soviet Joint Commission talks beyond their eventual breakdown?
  • What were the long-term consequences of the 1961 arrests under Park Chung-hee's regime?
  • What was the broader impact of the 1989 Rotary International convention on international relations?
  • What led to the specific ruling in favor of the conscientious objectors in 2004?

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This article was originally published by Yonhap News.

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