koreanfestivals1-4, Exercise 3: Rites and the half-moon

Model answer:

Charye (차례): the ancestor memorial service held at home, with families preparing and presenting special foods (freshly harvested rice, songpyeon, meat, fruit, vegetables) as offerings, usually early in the morning; the offerings vary by province.
Seongmyo (성묘): a family visit to the ancestral graves, usually with beolcho (tidying the graves and removing weeds), offering food, drink and crops.

The half-moon: the Chuseok article gives the Baekje/Silla legend (a phrase found on a turtle's back, "Baekje is full-moon and Silla is half-moon", predicting Baekje's fall), so a half-moon means a bright future or victory. The Songpyeon article calls the "most common belief" that a full moon can only wane while a half-moon would fill up, and gives the King Uija anecdote as only "one explanation". The two disagree on which story is the main one; both are legends.

An unsourced claim (any one): ssireum "is assumed to have 5,000 years of history"; in areas with no annual harvest, Chuseok is not celebrated; airline tickets sell out three months in advance; the design of hanbok "remains unchanged to this day"; the gift and price figures.

Sources: Wikipedia, Chuseok; Songpyeon.