From the above-mentioned numerous sites and rich and colorful cultural relics, it can be seen that between 7000 and 56000 years ago, with the middle and lower reaches of the Yellow River and the Yangtze River as the center, matriarchal clan communes have generally developed and flourished throughout the country.
Primitive agriculture, a variety of economic activities dominated by agriculture, developed earlier and faster in the clan communes in the middle and lower reaches of the Yellow River and the Yangtze River than in other areas. Most of the clan communes in these areas settled on the river bank or near the water platform for a long time, forming villages with large population and large scale.
The clan communes all over the country relied on the strength of clan organizations and used simple labor tools such as polished stone axes, stone shovels, wooden shovels, bone shovels, and stone sickles to manage primitive agricultural production with farming as the main method.
In the loess area of North China, millet crops with drought tolerance and strong self-reliance are mainly planted. Millet or its shell is often found in the pits, houses and tombs of Banpo and other Yangshao cultural sites. It shows that millet became the main grain in the north of China seven or eight thousand years ago.
