Guan Zhong, a great statesman and reformer in the Spring and Autumn Period, dominated the princes and Kuang Zheng for Zuo Qihuan, reformed the way of tax collection in the past, and implemented the "Guanshanhai" ("Guan" means "Guan", "Shanhai" is to open mines for cast iron and boiled salt. ), which created the earliest monopoly system of salt and iron in Chinese history. According to Guan Zhong's rough calculations, Qi Guo can get 60 million yuan a year.

Emperor Wu of the Han Dynasty was under the advice of the "financial planner" Sang Hongyang, in order to strengthen the medium

Chapter 1810 of "The Engineering Otaku Mixed in the Tang Dynasty" disappeared mysteriously! I am hitting it in my hand, please wait a moment,

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