Emperor Sui Yang, who led a lavish life of debauchery and ended up losing his crown, once had enormous numbers of fireflies collected and let go in the Chinghua Palace of Loyang. Their light was brighter than the moon.
隋朝奢靡、放縱而喪國的隋煬帝，曾由民間搜羅了數斛螢火蟲，由洛陽景華宮一起放走，螢火輝映，蓋過皎月。