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I read the information, it's about 25 years old, it's controversial, it's not more than 30 years old anyway.
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At the end of the Qin Dynasty, due to the prolonged war, the population declined. The population of the early Western Han Dynasty is estimated to be between 15 million and 18 million. Since then, due to the pursuit of Huang Lao's politics, the people's livelihood, and the territorial expansion during the reign of Emperor Wu of the Han Dynasty, the population has increased significantly.
According to the records of the Book of Han, the number of households in the Western Han Dynasty in 2 AD was 10,000, and the number of mouths was 10,000.
Due to the concentration of agricultural development in the Yellow River Basin in the early period of China's history, the population density of the Western Han Dynasty was extremely unevenly distributed. Bounded by the Huai River and the Qinling Mountains, the population in the north is about 80%, and the population in the south is less than 20%. The five prefectures of Si, Henan, Hebei, Yan, Qingdao and Xu, with a population of more than 5 million, are all located in the middle and lower reaches of the Yellow River, and the total population of these five prefectures accounts for 55% of the country.
The population density around the capital Chang'an is about 1,000 people per square kilometer. The population is less than 2 million, and there are four prefectures: Jiaojiao, Liang, Bing, and Shuofang. The main populations of Yang, Jing and Yi prefectures are distributed in the Chengdu Plain, Nanyang Basin, Taihu Plain and Ningshao Plain.
At the end of the Western Han Dynasty, Wang Mang usurped the Han Dynasty, beacon fires were everywhere, and natural disasters occurred frequently, and the population dropped sharply again. During the reign of Emperor Ming of the Eastern Han Dynasty, the population of the country was only about 35 million. After the population began to recover.
In the fifth year of Yonghe (140 years), there were 10,000 households and 10,000 mouths in the country. By 157 years, there were 10,000 households and 10,000 mouths in the country. It has been roughly restored to the heyday of the Western Han Dynasty.
The population distribution of the Eastern Han Dynasty changed again. The population of the Central Plains migrated to the Yangtze River valley to escape the war, and the population of the south rose to 40% of the country. There are more than 5 million mouths in the four prefectures of Yu, Jing, Yang and Yi.
The population of both states has doubled, and the population of Yangzhou has also increased by a quarter. The population of the South is growing at the same time as the population of most of the counties in the North is decreasing. Later, due to the wars of the Three Kingdoms period, by the beginning of the Jin Dynasty, the population of the country was only 16 million.
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In ancient times, people did not live very long, and many emperors died in their thirties and forties.
The age of 47 is called "late journey", because the average life expectancy of the ancients was not very long, and the average person was called old after the age of 40 (Du Fu's "Three Songs of Qiang Village" in "Forced to Steal Life in Old Age" and Su Shi's "Jiangchengzi Mizhou Hunting" "Old Man Talks about Juvenile Madness", the former is 46 years old, and the latter is 38 years old, the same is true).
He was 14 years old during the Pekingese period, 18-25 years old during the slave society period, and 30-35 years old during the feudal society.
The average life expectancy of human beings is 15 years, because human beings have little strength and cannot resist natural disasters, diseases, and wild animal attacks.
The average life expectancy of human beings was only 20 years BC, only 25 years old in ancient times, and the average life expectancy of human beings was only 40 years until the century. 1700: The average human life expectancy is 35 years.
1800: The average life expectancy of humans is 37 years It can be seen that there was no increase in human life expectancy in 1700-1800. The reason is that although it is possible to avoid disasters such as wild beasts, because of the low level of science and technology, life is hard, and there are no effective measures against diseases.
At the beginning of the 20th century, human life expectancy leaped from 40 to 61 years. In 1985, the average life expectancy in the world reached 62 years. The average life expectancy of the world population is expected to increase at a rate of about one year every five years.
1995-2000 is the year, 2000-2005 is the year, 2005-2010 is the year, 2010-2015 is the year, 2015-2020 is the year, and 2020-2025 will be over 70 years old. By the end of this century, China will be one of the top 10 longest-lived countries in Asia, with an average life expectancy of years.
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The average life expectancy of ancient people was very short, the average life expectancy was 18 years in the Xia and Shang dynasties, 20 years in the Qin and Han dynasties, 22 years in the Eastern Han Dynasty, 27 years in the Tang Dynasty, 30 years in the Song Dynasty, and 33 years in the Qing Dynasty.
The average life expectancy of the ancients given in the book "The Life Expectancy of the Average Life Expectancy of Our Generations" was: 18 years old in the pre-Qin Dynasty, 22 years in the Han Dynasty, 27 years in the Tang Dynasty, 30 years in the Song Dynasty, and 33 years in the Qing Dynasty. The great poet Du Fu of the Tang Dynasty once said, "Life is rare for seventy years", but in fact, it is not easy to live past thirty.
The reason for the short lifespan of ancient people.
1. Lack of food.
Civilians living in ancient societies were particularly sensitive to climatic conditions and natural disasters because they could only rely on cultivating the land for food. Once there is a flood or drought, it is not only easy to lead to the loss of the grain, but also the tragedy of starvation. In addition, a large part of the grain harvested by farmers in ancient times needs to be handed over to the state treasury, so the grain they have left behind often has the problem of not being able to receive green and yellow.
Collapse, especially for family members with large populations, is prone to starvation in a year of famine.
2. Wars are frequent, with countless casualties.
Ancient society was in a period of great social change, although the change of dynasties and constant wars almost became a norm. In this relatively chaotic social background, it is even more difficult for ordinary people to live and work in peace and contentment. Frequent wars can easily lead to the displacement of people.
In the process of constantly escaping the war, and constantly fleeing the tragic experience of famine. Most ancient people were not only prone to accidental death, but also died because infectious diseases could not be cured. They will even bend to die of starvation, "there is a meal but there is no next meal".
3. Poor medical conditions.
In ancient times, when medical conditions were generally poor, not everyone could see the onset of illness, "Dream of Red Mansions" said that the doctor would charge one or two silver for a visit, which was equivalent to nearly half a month's income of an ordinary person in ancient times, and it did not count the cost of medicine. In ancient times, except for high-ranking officials, rich and powerful people, ordinary people almost did not look down on medical treatment at all. The so-called "minor illness depends on carrying, major illness waiting for death" is actually a common medical condition in ancient China.
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According to the latest data in 2005, the average age of the elderly population in Beijing is aged.
According to the latest world population rankings, the average life expectancy of men in China is 44th in the world. At the top of the list is Switzerland, where the average life expectancy of a man is years. In China, we will say "seventy years old", which means that at the age of seventy, we have reached the age of ancient rarity, and people in this age group are actually susceptible to diseases, and of course, they will also face early death.
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Many people don't understand one thing, that is, the conditions in ancient times were relatively harsh, and the medical technology was worse than in modern times, but there are still people who have lived for a long time, why is this? First of all, let's introduce two people who have lived for a long time. >>>More