| Gaecheonjeol | |
|---|---|
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| Official name | Gaecheonjeol |
| Also called | National Foundation Day |
| Observed by |  Republic of Korea Democratic People's Republic of Korea |
| Type | National |
| Significance | Celebrates the myth of the founding of the state of Gojoseon |
| Date | 3 October |
| Next time | 3 October 2025 |
&sq=Envato&lang=en&file=File:Question_book-new.svg){kind=small} | This article needs additional citations for verification. (September 2024) |
| National Foundation Day | |
| Hangul | 개천절 |
|---|---|
| Hanja | |
| Revised Romanization | Gaecheonjeol |
| McCune–Reischauer | Kaech'ŏnjŏl |
| Part of a series on |
| Korean nationalism |
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&sq=Envato&lang=en&file=File:Jour_de_la_fondation_groupe.jpg)
Gaecheonjeol (Korean: 개천절; Hanja: 開天節; lit. 'The day the heaven opened') is a public holiday in South Korea on 3 October. Also known by the English name National Foundation Day, this holiday celebrates the legendary formation of the first Korean state of Gojoseon in 2333 BC. This date has traditionally been regarded by Koreans as the date for the founding of the Korean race.[1][2]
Gaecheonjeol is also recognized in North Korea, although not as a public holiday, with an annual ceremony at the Mausoleum of Tangun, the founder of Gojoseon.