巫蛊之祸

wū gǔ zhī huò

91 BC attempted coup d'etat against Emperor Wu of Han 漢武帝|汉武帝, beginning with accusations of witchcraft

巫

wū

also pr. [Wu2]

蛊

gǔ

arch. legendary venomous insect

之

zhī

(possessive particle, literary equivalent of 的[de5])

祸

huò

disaster