Taking place annually in mid to late September, Chuseok Day ( 추석 , literally "Autumn eve", once known as hangawi (한가위).
According to popular belief, Chuseok originates from gabae (Hangul: 가배). Gabae started during the reign of the third king of the kingdom of Silla , when it was a month-long weaving contest between two teams. On the day of Gabae, the team that had woven more cloth won and would be treated to a feast by the losing team. However, it is also said that Chuseok marks the day Silla won a great victory over the rival kingdom of Baekje. It is believed that weaving competitions, archery competitions, and martial arts demonstrations were held as part of the festivities.
Many scholars also believe Chuseok may originate from ancient shamanistic celebrations of the harvest moon.New harvests are offered to local deities and ancestors, which means Chuseok may have originated as a worship ritual. In some areas, if there is no harvest, worship rituals are postponed, or in areas with no annual harvest, Chuseok is not celebrated
Nowadays, it is very similar to American Thanksgiving. Koreans normally spend the day with their families, enjoying each other's company as well as a lot of food.
During the day, Koreans give thanks for their ancestors and also for the autumn harvest. Instead of football, Korean wrestling and circle dances are enjoyed during the festive day.