National Foundation Day or Gaecheonjeol
National Foundation Day or Gaecheonjeol is held on October 3. South Korea. This event in the first decade of the month October is annual. 
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Gaecheonjeol is a public holiday in South and North 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 as the date for the founding of the Korean people.
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.
Similar holidays and events, festivals and interesting facts
Armed Forces Day in South Korea on October 1
Mid-Autumn Festival or Moon Festival or Mooncake Festival on October 5 (15th day, 8th Chinese lunar month);
Hangul Day in South Korea on October 9
Pepero Day in South Korea on November 11
Kimchi Day in Korea on November 22
Samsung Electronics Day on January 13
Korean New Year on February 17 (is based on the Chinese lunisolar calendar. Date of 2026)
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