The earth has a history of about 4.6 billion years. The birth of the universe 654.38+0.5 billion years ago laid the material foundation of the earth. As a planet, the earth originated from the primitive solar nebula 4.6 billion years ago. Since then, the earth system has changed from simple to complex, and the evolution of each component is interrelated and influenced each other. The movement of the earth system and its collected geomorphological changes, life phenomena and life activities constitute the history of the earth.
The systematic scientific research on the origin and evolution of the earth began in the middle of the eighteenth century, and many theories have been put forward so far. It is generally believed that the earth, as a planet, originated from the primitive solar nebula 4.6 billion years ago. Like other planets, the earth has experienced some similar physical evolution processes such as accretion and collision.