What are the key points of seventh grade history

1, the earliest known human beings in China - Yuanmou people, it is about one million seven hundred thousand years ago. They already knew to use fire, and whether or not they could make tools was the fundamental difference between humans and animals. They lived in groups.?

2. The Peking Man occurred in the caves of Zhoukoudian, southwest of Beijing, about 700,000 to 200,000 years ago. They retained some features of apes and were able to make and use tools. They could use natural fire and preserve fire. They lived in groups.?

3. The Shandingdong people lived in the area where the Peking Man operated about 30,000 years ago. They mainly used beaten stone tools, and ground stone tools also appeared, and had mastered the technology of drilling holes. They already knew how to make fire artificially, lived by gathering and hunting, and also fished, and knew how to go to faraway places to exchange daily necessities.

They already sewed clothes with bone needles, knew how to love beauty, and were buried after death. They lived in clan communes united by blood ties. They looked basically the same as modern people.

4. The primitive farming life of Hemudu: The primitive inhabitants of Hemudu, about 7,000 years ago, vividly showed the picture of primitive farming in the Yangtze River basin. They already used ground stone tools, plowed the land with scythes and planted rice. They lived in dry-fence houses and led a sedentary life.

They had dug wells, raised livestock, made pottery and made simple jade and primitive musical instruments. China was the first country in the world to grow rice.?

5. The life of the primitive inhabitants of Half-slope: In the village of Half-slope, near Xi'an, Shaanxi Province, the ruins of a primitive farming village, about 5,000 to 6,000 years old, have been discovered. They commonly used polished stone tools, cultivated the land with polished stone tools and wooden scythes, etc., and harvested crops with stone knives.

The main grain was corn. They raised animals such as pigs and dogs, and also hunted and fished with bone arrowheads, fishing forks and hooks. They lived in semi-cave-like houses and were able to make colorful painted pottery. Pottery on the appearance of some carved symbols, scholars believe is the prototype of China's early writing. They already knew how to spin, weave, and make clothes.?

6, Dawenkou primitive inhabitants: about four or five thousand years ago, the inhabitants of Dawenkou, Shandong, farming economy has a greater development, agricultural tools have ground stone sickle, stone hoe and so on. At the same time, due to the development of productive forces, private property and the division of rich and poor.

7, Yan Huang war Chi You: about four or five thousand years ago, China's Yellow River Basin and Yangtze River Basin, living many tribes. Yan Di and Huang Di were the tribal leaders in the Yellow River basin, and there was a powerful Chi You tribe in the east. They united and defeated Chi You in the east at Zhuo Lu. The Yan Emperor and the Yellow Emperor formed an alliance to form the later Huaxia...?

8, the yellow emperor merit: according to legend, the yellow emperor builds the palace, makes the clothes, teaches people to dig the well, invents the boat and the car, lays the foundation for the clothes, food, housing and transportation for the later generations. Rayon invented silk reeling, Cangjie invented the text, Linglun wrote music. Later generations honored the Yellow Emperor as the "first ancestor of humanity", and to this day, overseas Chinese people often proudly call themselves "children of the Yellow Emperor".

9. Yao, Shun and Yu: According to legend, after the Yellow Emperor, there were Yao, Shun and Yu, the outstanding tribal leaders in the Yellow River valley of China. Yao lived a frugal life and loved the people; Shun treated people generously and set a good example; Yu led the people to control the water, and was out for 13 years, crossing the door of his house three times without entering.

It is said that when Yao was old, he elected Shun as his successor, and Shun adopted the same method to give up the throne to Yu. This method of selecting the leader of a tribal confederation is historically known as "Zen Cession".

10. Establishment of the Xia Dynasty: In about 2070 B.C., Yu established the Xia Dynasty, which was the first dynasty in the history of China. Yu also transformed from a tribal alliance leader to a king of a slave state.?

11. The meaning of the cession of Yao, Shun and Yu: ?

(1) Substance: It was a method of democratically electing the chief of a tribal confederation during the period of primitive society.?

(2) Performance: First, the new tribal leaders were democratically elected through the meetings of the tribal confederation. Second, the elected tribal confederation chiefs had no privileges.

Thirdly, from the elected chiefs, it was realized that: Yao's frugal life showed that he was equal to the general members of the clans in life; Shun's leading by example showed that the elected person should be a person of outstanding virtues and talents; and Yu's success in curing the water showed that it was his responsibility and duty to do things for the masses.