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Zuo Chuan" was originally called "Zuo's Spring and Autumn Period", and in the Han Dynasty, it was renamed "Spring and Autumn Zuo's Biography", referred to as "Zuo Chuan". According to legend, it was written by Zuo Qiu Ming in the late Spring and Autumn Period to explain Confucius's "Spring and Autumn". "Zuo Biography" is essentially an independently written history book.

It started in the first year of Lu Yin (722 BC) and ended in the 14th year of Lu Mourning (453 BC), based on the Spring and Autumn Period, and explained the outline of the Spring and Autumn Period by describing the specific historical facts of the Spring and Autumn Period, which is one of the important Confucian classics. It is together with "The Legend of the Ram in the Spring and Autumn Period" and "The Legend of the Liang in the Spring and Autumn Valley" and is called the "Three Legends of the Spring and Autumn Period".

Zuo Chuan is an important classic that records the social conditions of the Spring and Autumn Period. It is based on the royal archives, Lu Shice book, and the history of the princes' states. The chronicle is basically in the order of the Twelve Dukes of Lu in the Spring and Autumn Period, and the content includes appointments, alliances, conquests, weddings and funerals, usurpations, etc., which have an important impact on later historiography and literature.

It mainly records the decline of the Zhou royal family and the history of the princes' struggle for hegemony, and describes and comments on various etiquette norms, rules and regulations, social customs, ethnic relations, moral concepts, astronomy and geography, calendar seasons, ancient documents, myths and legends, songs and rumors.

Zuo Chuan is an important document for the study of pre-Qin history and the history of the Spring and Autumn Period, which represents the highest achievement of pre-Qin historiography and has had a great impact on the historiography of later generations, especially in establishing the status of chronicles. It supplements and enriches the content of the Spring and Autumn Period, not only recording the historical facts of Lu and one country, but also the history of various countries; It not only remembers major political events, but also widely involves "small things" in all fields of society; The "Spring and Autumn" ledger-style historical recording method was changed and replaced by a systematic and organized method of compiling historical books; It not only records the historical facts of the Spring and Autumn Period, but also cites many ancient historical facts. This has greatly enhanced the historical value of "Zuo Chuan".

Zuo Chuan is a chronicle written by the ancestors of ancient China, a total of 35 volumes, the longest in the "Thirteen Classics", in the four library of the whole book for the scriptures. So what is the introduction to "Left Biography"?

1. "Zuo Chuan", which is said to be written by Zuo Qiu Ming, is a chronicle history book with a complete narrative in ancient China, and it is also a representative of pre-Qin prose works. The original name of the work was "Zuo's Spring and Autumn", and in the Han Dynasty, it was renamed "Spring and Autumn Zuo's Biography", "Spring and Autumn Inner Biography", "Zuo's Chaos and Ants", and after the Han Dynasty, it was mostly called "Zuo Chuan". It is one of the important classics of Confucianism, and together with the "Legend of the Ram" and "The Legend of Gu Liang", it is called the "Three Legends of the Spring and Autumn Period".

2. "Zuo Chuan" is essentially an independently written historical literary work, which starts from the first year of Lu Yin (722 BC) and ends in the twenty-seventh year of Lu Ai (468 BC), based on "Spring and Autumn", and explains the outline of "Spring and Autumn" by describing the specific historical objects of the Spring and Autumn Period.

3. As one of the "100 Classics of Excellent Traditional Chinese Culture", "Zuo Chuan" has been launched in 2021.

"Zuo Biography" is said to have been written by Zuo Qiuming, a historian of the Lu State in the late Spring and Autumn Period.

Sima Qian first believed that "Zuo Chuan" was written by Zuo Qiu Ming, and since Liu Xiang, Pei Chu, Liu Xin, Huan Tan, and Ban Gu all used "Zuo Chuan" from Zuo Qiu Ming.

Liu Zhiji's "Stone Six Families" of the Tang Dynasty is also called: "The left heirloom, which first came from Zuoqiu Ming."

Ji Yun of the Qing Dynasty still believes that it was written by Zuo Qiu Ming in the "General Catalogue of the Four Libraries".

Zhao Kuang of the Tang Dynasty first suspected that the "Zuo Chuan" was not written by Zuo Qiu Ming.

Since then, many scholars have also been skeptical.

Many people think that the Zuo family who wrote "Zuo Biography" is not Zuo Qiu Ming.

Ye Mengde believes that the author is a native of the Warring States period; Zheng Qiao's "Treatise on the Mystery of the Six Classics" believes that he was a native of Chu during the Warring States Period; Zhu Xi believes that it is after Chu Zuoshi's dependence; Xiang Anshi believes that it was made by the Wei people; Cheng Duanxue thought it was a fake book.

Hao Jing of the Ming Dynasty believed that he was a native of the Jin Kingdom.

Liu Fenglu's "Zuo's Spring and Autumn Examination" believes that it was written by Liu Xin, and says that "Zuo's Spring and Autumn" is similar to "Yanzi Spring and Autumn" and other historical books.

Kang Youwei also believes that it was made by Liu Xin.

Qian Mu pointed out in "Chronology of Liu Xiangxin's Father and Son" that it could not be Liu Xin's work.

Qian Mu and Zhang Taiyan believe that the writing of "Zuo Chuan" is related to Wu Qi, a member of the Zuo clan of the Wei Guo, and even Wu Qi, and the children's book industry also believes that it was written by Wu Qi, and Guo Moruo also advocates that "Zuo Chuan" was written by Wu Qi.

Zhao Guangxian believes that it was made by Zuo, a native of Lu during the Warring States Period.

Wei Juxian believes that the author of "Zuo Biography" is Zixia.

It is now generally believed that the "Zuo Chuan" was not written by one person at a time, and the writing time was about 375 to 351 BC (the middle of the Warring States period), and it was compiled by some scholars during the Warring States period.

The main part of the historical materials may have been originally written by Zuo Qiu Ming.

After the publication of the "Zuo Chuan" collected by Zhejiang University, it did not solve the age of the writing of "Zuo Chuan", but caused a multi-party pen war on the authenticity of the bamboo slips collected by Zhejiang University.

Brief introduction. "The Spring and Autumn Annals", formerly known as "Zuo's Spring and Autumn Annals", was also known as "Spring and Autumn Zuo" and "Spring and Autumn Inner Biography" in the Han Dynasty, and it was mostly called "Zuo Chuan" after the Han Dynasty.

According to legend, Zuo Biography is a historical book annotated by Zuo Qiu Ming of Lu State in the late Spring and Autumn Period for the "Spring and Autumn Period", and "The Legend of the Ram" and "The Biography of Gu Liang" are collectively known as the "Three Legends of the Spring and Autumn Period".

It is the first chronicle with a detailed narrative in China, and it is also an outstanding masterpiece of historical prose.

With a total of 35 volumes, it is one of the Confucian classics and the longest of the thirteen classics, and is listed as a scripture in the Siku Quanshu.

The account ranges from 722 BC (the first year of Lu Yin) to 468 BC (the twenty-seventh year of Lu Ai).