koreanfestivals1-6, Exercise 2: Buddha's Birthday and change in rites

Model answer:

Buddha's Birthday in South Korea is a national holiday on the 8th day of the 4th lunar month. Names: Bucheo-nim o-shin nal (부처님 오신 날, "the day when the Buddha came"), Seok-ga T'an-shin-il, and Chopail (초파일, "the first 8th day").
Two things on the day (any two): lotus lanterns hang in temples, homes and streets; many temples hold a large lantern festival (Yeondeunghoe); many temples provide free meals and tea (often including sanchae bibimbap).

A change in ancestral rites (any one): rites are now commonly held for only two generations, or only for dead parents; more are held in the evening, not after midnight; they can be performed in a younger son's house, or by a daughter or younger son.
A claim without a survey: that in most Korean families the rites still remain an important part of their culture and are faithfully observed.

Sources: Wikipedia, Buddha's Birthday; Jesa.