In ancient times, what were the basic conditions for the rise and fall of dynasties and their strength?

"The king takes the people for granted, and the people take food for granted"China, as a traditional agricultural country, the strength of the country depends on the size of the population and the amount of food per capita, that is to say, are there many people? Is the country rich? These two points.

In ancient times, peasants were the group with the largest population base in society, and likewise they were the most easily satisfied and controlled group.

As long as there was a piece of land to plow, something to produce, and enough to eat all year round, they would be content.

As the saying goes, no one asks if you are poor in the streets, but if you are rich in the mountains you have distant relatives. The country is also the same, you are rich and strong people naturally afraid of you serve you, willing to do for you before and after the horse little brother!

From China's successive boundaries can be seen, only in the high per capita food possession and a large number of people, corresponding to the size of the territory is the most extensive, the national strength is also the most powerful time!

Western Han Dynasty: In 2 A.D., the population of the country was 59.59 million. Tongdian. Food and Foodstuffs Zhi. Per capita grain possession: 705 (city catty).

Such a population and per capita food possession, at that time enough to throw off the surrounding barbarians a few streets, it is with such a strong national strength, Han Wu Di began to open up the territory, the peak of the country reached 10.2 million square kilometers !

Tang Dynasty: In 755 AD, the population was 52.91 million. Per capita food consumption: 1256 (city catties).

The Sheng Tang Dynasty is also the same, the country is rich and strong, the world came to do business with you to recognize you as a big brother to honor you as the days of Khan, the country's land area of 12.4 million square kilometers at one time.

The Qing Dynasty: Qianlong 55 years (1790), the population exceeded the 300 million mark, per capita food possession: 1,085 (city pound).

While the per capita food consumption of the Qing Dynasty was relatively small, there were too many people, and even the most powerful period of the Kangxi and Qianlong Dynasties was not as rich as the Ming Dynasty, but with one-third of the world's population, it was also called a great age. The most powerful when the land area once reached 13.8 million square kilometers.

Throughout the history of our country, all the great times such as: strong Han, Shengtang, Kangqian Shengshi, Mighty quartet of countries to the dynasty that is just the result of the reason is that more people, the country's wealth, and hit but that is not only on their knees and call their dads?