Is lecture room about the history before the pre-Qin dynasty?

Spring and Autumn Period and Warring States Period? There are many others, such as:

How was Confucius tempered in Bao Pengshan?

Dongping mingxiang Guanzhong

A Mirror of Fang Zhiyuan's National History (Spring and Autumn Period and Warring States Period)

Jiang An was a lobbyist during the Warring States Period (Zhang Yi, Su Qin).

Shan Li was the five tyrants in the Spring and Autumn Period and the seven heroes in the Warring States Period.

Liu Xinglin's Rise of Daqin (Part One, Part Two)

Penglinzhou dating project

Exploration of Sun Hua Shudi (Sanxingdui)

Sun Liqun Lv Buwei; Li si; Fan Li; I read classics (Han Feizi's analysis); Ancient Chinese Medicine Stories (Bian Que)

Wu Fengyun in the Spring and Autumn Period of Wang Weiping

Yi Zhongtian I read classics (I read pre-Qin philosophers); A hundred schools of thought contended in the pre-Qin period.