This national holiday in the Republic of Korea (South Korea), also known as Gaecheon-jeol, commemorates the legendary founding of the Korean nation in 2333 BCE by Tangun. Prince Hwan-ung left heaven to rule earth from Mt. T’aebaek and bore a son called Tangun Wanggom, meaning Sandalwood King. When he grew up, he built his own city and called his new kingdom Choson. The myth is important in that it links the Korean people with a heavenly origin. The holiday is celebrated with ceremonies at the ancient rock altar of Tangun, on the summit of Mt. Mani on Kanghwa Island, about 25 miles west of Seoul. Discuss
Source: The Free Dictionary