In chronological order, this book records more than 760 major events in New China's politics, military, diplomacy, economy, science and technology, culture, law, people's livelihood, ecological environmental protection, united front, and reunification of the motherland in the 70 years from October 1, 1949 to March 5, 2019. It reflects the glorious history and great achievements of New China in the past 70 years. The introduction at the beginning traces back 70 years from 1949, telling some major events in the world and China in the 70 years from 1879 to 1949. At the end, it compares some main data in the 2019 Government Work Report with relevant data in 1952, intuitively reflecting the changes, development and remarkable achievements in the 70 years since the founding of New China, forming a strong contrast between the two 70 years and enhancing the historical depth of the book. This is a unique feature of this book. There are 756 events in the book, each of which has a time, place, course of events, function or meaning, etc., And can be used as an entry. This makes this book also have the function of a dictionary reference book.