During the Qin and Han dynasties, agriculture was developed and there were many varieties of crops. Grains are dominated by so-called five grains or nine grains. Non-staple food: including meat, fruits and vegetables. During the Qin dynasty, cattle, sheep, pigs and dogs were the main meat products in the north, along with fish and poultry. Due to the great differences in geographical environment between the north and the south, the types of fruits are different. The fruits in the north mainly include pears, chestnuts and dates. Most of the fruits in the south are tropical and subtropical fruits, such as citrus, litchi and bayberry. Like peaches and plums, they are planted in the north and south. Vegetables have wide adaptability to different regions, and there is no obvious difference between north and south. The vegetables in this period mainly include sunflower, Man Qing, taro, leek and eggplant. Drinks: The main types of drinks in this period are wine and cool syrup. There was no tea in Qin dynasty. Tea began to exist in the Han Dynasty, but at first it was similar to the tea ceremony in Japan now. Tea is ground into powder and then drunk.

The Qin dynasty (22 BC/kloc-0 BC/-207 BC) was the first one in the history of China to be developed by the state of Qin at the end of the warring States period? The unified dynasty passed down to the third generation consisted of two emperors and a king, and the country lasted only fourteen years.

Qin was originally a vassal state of the Zhou Dynasty. After Qin Shihuang succeeded to the throne, from 230 BC to 22 BC1year, he successively conquered the six countries of Kanto, completed the unification of China, attacked Xiongnu in the north and Baiyue in the south, and established an unprecedented huge dynasty in China. After the death of Qin Shihuang, Qin Ershi? Hu Hai and Zhao Gao conspired to tamper with the Qin law, which led to the peasant uprising at the end of Qin Dynasty. In 207 BC, Zi Ying, king of Qin, surrendered to Liu Bang, and the Qin Dynasty perished. ?

The establishment and application of the imperial system in Qin Dynasty? The central official system, represented by three officials and nine officials, abolished the enfeoffment system and replaced it with the county system, which completely broke the Shi Qing Shi Lu system since the Western Zhou Dynasty, effectively safeguarded the unity of the country, strengthened the central government's control over the localities, promoted the unified cultural customs of the same track, the same book and the same line, enhanced the cohesion of the unified system and laid the foundation for the rule of the unified dynasty in China. Therefore, it is called "politics and law in Qin dynasties". The Qin Dynasty ended the 500-year-old warlord regime since the Spring and Autumn Period and the Warring States Period, and became the first centralized country with multi-ethnic integration in the history of China. ?