koreanfestivals1-8, Exercise 2: Seoul Lantern Festival and Jinju

Model answer:

Started in 2009, to celebrate "Visit Korea Year 2010 to 2012", alongside the restored Cheonggyecheon stream.
A disagreement (any one): the Festivals in South Korea article gives the first festival as 12 days (over 520,000 visitors) while the Seoul Lantern Festival article says 5 days; or the Seoul article's venue statements (Gwanghwamun Plaza from 2022 vs Cheonggyecheon in 2024 and 2025).

Jinju complaint: the city said Seoul's festival copied its Namgang Yudeung Festival (begun 2000 as a requiem for those who died in the 1593 battle of Jinju Castle). More than 20 Jinju associations asked for Seoul's festival to be discontinued; there was a one-man protest and an assembly. It ended when the two cities agreed to change the Korean name of Seoul's festival.

Sources: Wikipedia, Seoul Lantern Festival; Festivals in South Korea.