1. Early ape-man stage: lived about 3 million years to 1.5 million years ago, and had the basic characteristics of human beings, and could walk upright and make simple gravel tools.

2. Late ape-man: About 2 million to 300,000 years ago, it was anthropoid and had a large brain. He can make more advanced paleolithic tools and start to use fire, such as China, a Beijinger in Zhoukoudian, Beijing.

3. Early Homo sapiens (ancients) stage: From10-200,000 years ago to 50,000 years ago, it gradually broke away from the characteristics of apes and became very close to modern people, such as Neanderthals in Germany.

4. Late Homo sapiens (newcomer) stage: About 40,000-50,000 years ago, at this time, the evolution of human beings was obviously accelerated, and it was very similar to modern people in form. Culturally, there has been the art of carving and painting, and decorations have appeared. For example, in 1933, the Neanderthals of Gulong Mountain in Zhoukoudian were discovered. At this time, primitive religion has appeared and entered the matriarchal society.

These are the main stages of human development.