In Jeju Province, South Korea, a civil-war-like period of violence and human rights abuses known as the Jeju uprising begins.

Jeju Province, officially Jeju Special Self-Governing Province, is the southernmost province of South Korea, consisting of eight inhabited and 55 uninhabited islands, including Marado, Udo, the Chuja Archipelago, and the country's largest island, Jeju Island. The province is located in the Korea Strait, with the Korean Peninsula to the northwest, Japan to the east, and China to the west. The province has two cities: the capital Jeju City, on the northern half of the island, and Seogwipo, on the southern half of the island. The island is home to the shield volcano Hallasan, the highest point in South Korea. Jeju and Korean are the official languages of the province, and the vast majority of residents are bilingual.

Human rights are universally recognized moral principles or norms that establish standards of human behavior and are often protected by both national and international laws. These rights are considered inherent and inalienable, meaning they belong to every individual simply by virtue of being human, regardless of characteristics like nationality, ethnicity, religion, or socio-economic status. They encompass a broad range of civil, political, economic, social, and cultural rights, such as the right to life, freedom of expression, protection against enslavement, and right to education.

The Jeju uprising was an insurrection on Jeju Island, South Korea from April 1948 to May 1949. A year prior to its start, residents of Jeju had begun protesting elections scheduled by the United Nations Temporary Commission on Korea (UNTCOK) to be held in the United States-occupied half of Korea, which they believed would entrench the division of the country.