What was the ancient name of Shandong Province?

Shandong Province belonged to Qi and Lu in the pre-Qin period, so it was renamed Qilu. Today, Shandong belongs to Qilu in the pre-Qin period, Qi is a large piece of land east of Shandong with Zibo as its capital, and Lu is a small piece of land west of Shandong with Jining as its capital. By the end of the Warring States period, with the basic completion of national integration and humanistic assimilation, the cultures of Qi and Lu gradually merged into one.

In 256 BC, the State of Chu destroyed Lu, and in 221 BC, the State of Qin destroyed Qi. Because of the integration of culture, "Qilu" forms a unified cultural circle, and the regional concept of "Qilu" is formed by the unified cultural circle. This area is roughly equivalent to the later Shandong provinces and regions, so it became the synonym of Shandong. Extended information

Ancient Qilu culture:

As the core of Qilu culture, Qi Taoism came into being in the State of Qi in the Spring and Autumn Period. This school was initiated by Jiang Taigong, followed by Jixia Taoism and Guanzi. Jixia Xuegong is the world's first special institution of higher learning held by the government and privately hosted. This rare and spectacular "contention of a hundred schools of thought" in the history of China's academic thought is centered on Jixia School in Qi State, and official learning is the study of Huang Lao.

during this period, academic works came out one after another. There are Song Zi, Tian Zi, Wo Zi, Jie Zi, etc., which have died now. In addition, the compilation of Guanzi, Yanzi Chunqiu, Sima Fa, Zhou Guan, etc. was also attended by people under Ji Xia. The existence of scholars in Jixia created a good social environment for a hundred schools of thought to contend at that time and promoted the prosperity of academic culture in the pre-Qin period.

Reference: Baidu Encyclopedia-Qilu.