A brief answer to the theory of agricultural origin and agricultural origin

There are three places where agriculture originated: one is West Asia, which is now Iraq and its surrounding areas. This place is the producing area of wheat and barley, as well as sheep and goats. This kind of agriculture is called animal husbandry.

The second is China. China is the birthplace of millet and rice. Millet refers to millet and millet, which mainly originated and developed in the Yellow River valley and later became the main crop in northern China.

The third is in the United States, which is the origin of corn. We also grow a lot of corn in China now, and it was not until the Ming Dynasty that corn was introduced. American agriculture is animal-free agriculture. It has no livestock.

On the origin of agriculture: agricultural inventions on the earth are called "Green Revolution" or "Neolithic Revolution". It is generally believed that agriculture is produced on the basis of gathering economy. In the process of collecting wild plants for a long time, people gradually mastered the growth law of some edible plants. After countless times of practice, it was finally cultivated and domesticated into crops, thus inventing agriculture, about 10 thousand years ago at the end of Paleolithic or the beginning of Neolithic. There are many hypotheses about the origin of agriculture. For example, religion believes that domestication of animals and plants is mainly for religious reasons, and human beings raise animals and plant them mainly to prepare sacrifices for priests. Cattle, sheep, pigs, pigeons and plants were all used as priests or witchcraft in ancient times. Today, there is a "cattle belt" extending from Spain and Portugal to East India. People in this area have a special religious feeling for cattle. In fact, the origin of agriculture is related to many factors, such as climate change, tool making, pottery invention, settled life, population increase and so on. The invention of primitive agriculture in China was about 10,000 years ago, and the first cereals successfully planted were mainly millet, millet and rice.