1, people usually call January of the lunar calendar "the first month", because in ancient China, which month was the first month of each year was different from dynasty to dynasty. The first month of Xia Dynasty is January, Shang Dynasty is December and Zhou Dynasty is November. Every time these dynasties revised the order of the next month, they called the first month after the change "the first month" and "Zheng", which means revision. It was not until Emperor Wu of the Han Dynasty that the first month of the lunar calendar was finally determined as the first month, which has been popular ever since.
2. Why is the word "Zheng" in the first month pronounced "Zheng"? There is a reason for this: Qin Shihuang's name was Ying Zheng. After he unified the world, he thought that the pronunciation of the word "Zheng" was the same as the word "Zheng" in his name, so he broke the taboo and ordered that "the first month" be pronounced as "the moon is closed", otherwise he would be beheaded. Since then, the word "Zheng" in "The First Month" has become the sound of "Zheng", which has continued until now.
In ancient times, there were many cases of changing words because of taboos, especially in Ming and Qing Dynasties. For example, during the Kangxi period, all the words with the word "Xuan" were changed to "Yuan", and the prototype of "Li Yuanba" in the novel "The Romance of Sui and Tang Dynasties" was Li Yuan's dead son named "Li Xuanba". Because it was written in the Qing Dynasty, it was changed to "Li Yuanba", and the traditional Chinese medicine "Scrophularia" was also taboo. The original intention of taboo is to respect elders, but once misused, this custom will lead to disrespect for culture. In modern times, it should be treated rationally. Of course, we should also pay attention to proper taboo, just as we can't take our father's surname or grandfather's surname as our son or grandson. In short, you should be rational.