readx;? The following is the legend about Nuwa mending the sky:

According to legend, in ancient times, the four optimus pillars toppled down, the earth of Kyushu was cracked, the sky could not cover the earth, the earth could not carry all things, the fire spread without extinguishing, the flood did not stop, the ferocious beasts ate the good people, and the ferocious birds grabbed the old people and children with their claws. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 infoIn this case, Nuwa smelted the five-colored stone to repair the sky, cut off the feet of the giant turtle in the sea to make a heavenly pillar to support the four directions, killed the black dragon to save Jizhou, and blocked the flood with reed ashes.

This legend represents the time of the flood, when humans hid in the mountains and invaded the territory of the beasts, who continued to attack humans. Nuwa, the leader of the Youwa clan, led humans to kill beasts and water monsters, and built dikes in important areas to fight prehistoric floods. He played a pivotal leadership role in this process and will be remembered for generations to come. Therefore, after the decline of the Fuxi tribe, the people jointly elected Nuwa to continue to lead the human race and become the co-leader of the tribal alliance.

Nuwa has developed a new type of musical instrument that can be used in a single tube or assembled to form a new type of musical instrument that can be used in a single tube or assembled into a large step forward in terms of technology and effect. He ordered the Eling clan to make the capital city and use it to regulate the music of the world, and ordered the Holy clan to be a camp with the sun, moon and stars, and its name was Chongle. Done, there is no unreasonable in the world. ”

"Saying Wen Jie Zi" cloud: "Lai" Manhua also, from the sound of the sound. Lai is mangrove, that is, quinoa, also known as red heart gray weed, the wild vegetables that the poor often ate in ancient times, and the other leaves can be boiled. Confucius is suitable for Chu, seven days are not hot, quinoa soup is not gritty, and the disciples all have dishes. "Lai" is one of the earliest edible staple food plants discovered by the Youwa clan and began to be artificially cultivated.

Nuwa introduced "Lai", which has been eaten as a staple food, to Nuwa City, and led the people to continue to carry out demonstration cultivation of other related crops with "Lai" as the mainstay, large-scale production, careful breeding, strengthening plant protection, purification and rejuvenation, and survival of the fittest. "Lai" eventually became one of the staple foods in the life of the ancestors, and other crops such as wheat, millet, soybean, rice, and other food crops were also successfully selected and bred. With the ancestors' understanding of the production process and production links of "Lai" and other crops, the mastery of production technology and the natural evolution of "Lai" and other crops, the ears of "Lai" are gradually abundant, the grains are full, the seeds are large, the yield is increasing with the years, the taste is rich, pure and edible, and the edibility is extensive. As a result, the demand for the edibility of the seeds of "Lai" was wider, and the ancestors were more commonly eaten in their lives. The development of agriculture has brought about a guarantee for the people's livelihood and food. It has strengthened confidence in the development of agricultural production and promoted the determination to explore new agricultural varieties and cultivate grain seed sources.

There is a kind of weed growing in Nuwa City, and the ancestors called it Qicao. This grass is edible, it is not rare, and it is found everywhere in Nuwa City, so people do not cherish it very much. However, in the process of treating diseases, Nuwa discovered the medicinal value of this herb and named it Astragalus, which is the earliest Chinese herbal medicine.

During the reign of the Nuwa clan, a basic calendar was formulated: the seasons were basically distinct, the initial annual cycle was determined, the earth revolves around the sun once a year, and the sun moves once a year in the sky. The line in which the sun moves in this way is called the ecliptic. The sun, moon, and planets all move within a certain distance on both sides of the ecliptic, and at that time, the ecliptic was divided into twelve equal parts, called the zodiac signs, that is, the year was divided into twelve months, and there were four seasons in a year, and there were six festivals in a season. There are only 29 and 30 days in a calendar month. It is stipulated by the New Year, and does not contain human factors. The beginning of its year has strong astronomical significance, and has the astronomical and mathematical cultural connotation of the solar year and the month and the solar season and the festival of the solar season. It is the basis of the Chinese calendar. After thousands of years of practical application, it has been improved and enriched, developed and perfected, and finally became the lunar calendar (also known as: summer calendar, middle calendar, old calendar, commonly known as Y calendar) used by people.

The lunar calendar is a fixed calendar, which has the characteristics of an astronomical calendar. It corresponds well to all kinds of celestial phenomena. For example, the relationship between the height of the sun and the temperature of the earth, the lunar day corresponds to the moon phase, the occurrence and non-occurrence frequency of leap months correspond to the perihelion and aphelion of the earth, the sunrise and sunset, the illusion of morning and dusk, solar eclipses, lunar eclipses, sea tides, and the solar height corresponding to the solar height. It provides valuable scientific data on weather and astronomy for the production of agriculture, animal husbandry and fishery of primitive ancestors. Therefore, because its solar terms strictly correspond to the height of the sun, it has the cultural connotation of "the unity of heaven and man".

This shows that the women represented by Nuwa have discovered the conditions for the growth and maturity of plants in the long-term collection activities, and after repeated practice and understanding, they have an understanding of the laws of crop growth, and finally the rudiments of agriculture have appeared. With the development of agriculture, animal husbandry also developed.

Pottery appeared in the Youwa period, and people could use pottery to cook, process, brew, and sterilize food. Tao Xun as a musical instrument also appeared in this era. The use of pottery has improved the living conditions of human beings, had a profound impact on the development of human dietary hygiene and medicine, and generated a large demand for food. Once planting technology and the need for plant seeds were combined, agriculture was about to emerge. In order to grow crops in large quantities, it is first necessary to select the right plant species and domesticate them into crop varieties, and Nuwa's introduction of Rai was a successful domestication process. Second, it is necessary to have agricultural tools, such as plows, and third, it is necessary to master agricultural time. All of this requires long-term technological progress and knowledge accumulation, and it is by no means possible overnight. During the Nuwa period, a set of methods for domesticating crops was developed, and the calendar was invented, which played a great role in agriculture.

In the early stage of agricultural development, the main technological progress is manifested in the domestication of wild plants, after tasting herbs and trial seeds, the ancients preliminarily determined several main weeds suitable for cultivation, the species of wild grasses vary from region to region, the harvested seeds are not only partially eaten, people will choose full grains to keep as seeds, this is actually the domestication process of wild animals and plants, so that the difference between cultivated plants and farmed animals and their wild original species is getting bigger and bigger, and they become crops and domestic animals respectively.

Agriculture includes three steps: planting, harvesting, storage, and processing and eating. In the early era of gathering, fishing and hunting before the advent of primitive agriculture, harvesting and storing and eating were two completely independent processes, and the things that people collected and stored were not necessarily edible, and the things that people ate were often picked and eaten freshly, not necessarily what was previously stored, and the food that people stored was often not plant seeds.

With the advent of pottery, people had a safe and effective means of storage, so that they could store food and drinking water for a long time, so that the two independent processes of gathering, storage and eating were closely combined. Only in this case will there be a large demand for obtaining plant seeds. The saying that "starvation does not eat seeds" is very conducive to the selection and breeding of crop varieties.