What events in which dynasty did "burning books to bury Confucianism" refer to?

It's about Qin Shihuang burning books and burying Confucianism.

Burning books to bury Confucianism, also known as "burning books to bury Confucianism", was called "burning books to bury Confucianism" after the Western Han Dynasty. In 2 13 BC and 2 12 BC, Qin Shihuang burned books to bury Confucianism and killed "more than 460 people who broke the ban".

The word "burning books to bury Confucianism" comes from Historical Records (volume 12 1 Scholars), which says that "by the end of Qin Dynasty, six arts were missing". Fu Su, the eldest son of Qin Shihuang in Historical Records of Qin Shihuang, is often cited as evidence by the view of "pit Confucianism" ("At the beginning of the world, the leaders of distant people did not get together, and all students recited the teachings of Confucius. Today, I value the law, and I am afraid that the world will be uneasy. I only watch it. " ), Kong Anguo (grandson of Confucius 10) also said: "The first generation of classics was destroyed by Qin Shihuang, and scholars all over the world fled and dissolved." Liu Xiang's Preface to the Warring States Policy of the Western Han Dynasty: "Take punishment as the rule and believe in small skills as the way. Then burn poetry books and kill Confucian scholars. "