In ancient times, the revolution was that the emperor was called emperor by the order of heaven in ancient times. Therefore, when dynasties change, the monarch changes his title, which is called revolution.
The word "revolution" comes from: "heaven and earth have changed in four seasons, and Tang Wu's revolution follows heaven and corresponds to people".
In modern times, it refers to the profound qualitative change in the development of nature, social circles or ideological circles. Revolution can be divided into broad sense and narrow sense. In a broad sense, revolution refers to the fundamental change of things and the leap from the old to the new; In a narrow sense, revolution mainly refers to social revolution and political revolution.