TIL About the Jeju Massacre, where South Korean forces wiped out 10 percent of the island of Jeju for the crime of organizing a General Strike
TIL About the Jeju Massacre, where South Korean forces wiped out 10 percent of the island of Jeju for the crime of organizing a General Strike
en.wikipedia.org
Jeju uprising - Wikipedia

I am Korean living in Korea and this is a not well-known massacre even in Korea. I just heard the public does not pay attention to this though they should. (I am the one of public)
Indeed, how can anyone pay attention to something they're never informed of?
I have edited my comment. The public should do pay attention. At least the government, politicians, or mass media should. The most famous thing from the island currently is its fruit. Thank you for sharing this link because it made me visit the article.
Well it's literally taught at school nowadays. I'm actually pretty surprised you've never heard of it.
See also https://www.koreatimes.co.kr/lifestyle/koreanheritage/20250411/jeju-april-3-uprising-archive-added-to-unesco-memory-of-the-world-register
While it may be taught in school nowadays if it wasn't when they were in school then it would be hard to imagine them hearing about it otherwise unless they pay very close attention to the media.