What does Li Juming 2020 Children's Calendar mean?

"Tong Sheng" means the best. The "Tong Sheng" that we have seen since childhood is actually called "Shu Tong". Because "book" and "lose" are homophonic, the meaning of "transmission" is not good, and I don't know when it will overlap, from "transmission" to "winning". There are two kinds of "tong sheng". One is an astronomical almanac written by Qin for the reference of emperors and local officials, which contains predictions of auspicious days and the alternation of four seasons. The other is "Farmer Calendar", which is a weather forecast for farmers' reference. Compiled several folk almanac, plus customs documents, into a book. In the early years of the Republic of China, telegraph codes and English-Chinese transliteration were even added. It can be found that "tong sheng" breathes with the times and the people.