Ancient city with a population of one million caused controversy: Rome Luoyang, Chang ‘an, Kaifeng, Hangzhou all have water?


Ancient city with a population of one million caused controversy: Rome Luoyang, Chang ‘an, Kaifeng, Hangzhou all have water?According to one view, chang ‘an in the Tang Dynasty covered an area of 87 square kilometers and was the first city in the world with a population of more than one million……Another view of Xi ‘an is that the ancient Roman city, Alexandria, jiankang city in the Southern Dynasty, Luoyang city in the Sui Dynasty, with a population of more than one million, are earlier than chang ‘an city in the Tang dynasty……Both views disagree. There are various views about the population of Chang ‘an in tang Dynasty, ranging from 300,000 to 1,500,000 to 1,600,000.The record that jiankang had a population of over one million in the Southern Dynasty originated from an ancient book without circumstantial evidence.There are many different versions of the Roman population.In my opinion, whether Rome or Luoyang in the Eastern Han Dynasty, Chang ‘an in the Tang Dynasty, Kaifeng in the Song Dynasty, Hangzhou, the so-called million people all contain water, and the earlier the age, the more water.If we count the area of the city, we can obviously find the water inside. For example, chang ‘an city of Tang Dynasty has a population density of 11,500 / square kilometers, which is higher than that of modern cities, not to mention that the palace and yagu in the capital occupy the best half of the city.As a matter of fact, the registered population of Tang has never exceeded 53 million, so it does not meet the requirements of an urban population exceeding one million.The ancient Roman city was expanded and at its peak was only one-third the size of Chang ‘an during the Han Dynasty.Han Chang ‘an city registered population is only 220 thousand, plus satellite cities, such as a few ling yi, such as 280 thousand registered population Maoling Yi, its total population is only one million.The entire Sanfu region, with its fertile guanzhong plain and thousands of kilometers of irrigation systems built over a thousand years, such as the Zhengguo Canal, still cannot support such a large population.It would also take the construction of a canal to transport millions of tons of grain from the eastern part of the River, using 60,000 water pipes each year, to solve the food problem in Sanfu.You can see how unreliable it was for Rome to have a population of more than a million.As a matter of fact, no matter the ancient Roman city, luoyang in the Eastern Han Dynasty, Chang ‘an in the Tang Dynasty, kaifeng in the Song Dynasty, or Hangzhou, the population of more than one million all had water.Do you have a problem with that?

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