In the hot summer of the Tang Dynasty, what can the emperor do except enter the palace for the summer?

It can be seen that the weather in history can be said to be constantly changing. As human beings living in this environment, they will think of various ways to adapt to the weather.

Human civilization is only a few million years old, and the earth has existed for 4.5 billion years. It is really dwarfed, just like the blink of an eye.

Human history can also be divided into prehistoric civilization before the appearance of writing and historical period after the appearance of writing. The historical period began around 6000 BC, but some myths and legends before that were recorded by later people, so up to now, the climate investigated by historical geography is mainly

Climate in the past1100,000 years. In the history of/kloc-0.0 million years, the climate is not static, but also divided into warm period and cold period. You can wear more clothes to keep warm when it is cold, so what can you do when it is hot? Let's learn about the climate in our country's history first.

I. Climatic conditions in different periods

1. Changes before Sui and Tang Dynasties

In the last ten thousand years, the warmest time in China should be around 8,000 years ago. At that time, the precipitation was about 200 mm more than now, the temperature was generally 3 degrees Celsius higher than now, and the climate was warm and humid, which was very suitable for survival.

At that time, it coincided with the new era, and the culture of this period was very dazzling. The precious wealth left by the Neolithic Age laid a solid material foundation for us to enter civilized society.

Later, when Yao, Shun and Yu lived, they were a little colder and drier than the Neolithic Age, but they were still in a warm period, which was much more comfortable than the times we live in now.

The warm period lasted until the end of Shang Dynasty. In the Western Zhou Dynasty, the climate became cold, the winter became longer, and even the Yangtze River basin was frozen.

Since the late Spring and Autumn Period when Confucius lived, China was once again in a warm and humid climate. The average temperature at that time was 1.5 degrees Celsius higher than it is now.

Even in the Yellow River valley, there will be lush plum trees, which are rare today. The warm climate lasted until Wei, Jin, Southern and Northern Dynasties, and the cold climate forced some nomadic people in northern China to go south. The Huaihe River, which has no freezing period now, had a freezing period at that time, indicating that the environment was bad at that time.

Since the Sui and Tang Dynasties, the climate has become warm and comfortable. In the Tang Dynasty, litchi was even cultivated in Sichuan Basin of China for Yang Guifei to enjoy, and women in the Tang Dynasty wore it openly, which shows the fiery degree at that time.

2. Changes after Sui and Tang Dynasties

The warm climate continued until the Southern Song Dynasty, when it began to get cold, and it was not until the Yuan Dynasty that a very short warm period was ushered in. At that time, the nomadic people in the north had strong grasslands and strong cattle and sheep to recuperate and develop the economy, and the prosperity of Mongolia may also be related to this.

The climate in Ming and Qing Dynasties was much colder than it is now, so it was also called "Little Ice Age in Ming and Qing Dynasties". It was not until later that industrial development had a greenhouse effect that the temperature gradually warmed up.

To sum up, the hottest period in Chinese history is Yao Shunyu, Confucius and Mencius, and Yang Guifei in Tang Dynasty. Then take the recent Tang Dynasty as an example. At that time, the climate was warm and it would be particularly hot in summer. What do they rely on to escape the heat?

Second, three summer strategies in the Tang Dynasty

1. Collect ice cubes for later use.

During the Tang Dynasty, it was difficult for the temperature to rise in summer. Du Fu's poem "A hundred birds die of bitter heat, and the fish in the pond are dry." "Steaming on July 6th is not enough for meals.".

It describes the weather conditions at that time. In fact, the ancients also had their ways to escape the heat in hot summer. First of all, we know how to drive away heat with ice.

Every winter, there is always a layer of ice on the Weihe River in the northern suburb of Chang 'an, and wealthy families in the city will send attendants to chisel the ice on the river and take it back to the government.

Dignitaries usually have cellars in their homes, so they put the ice cubes neatly in the cellars, cover them with thick firewood, and seal the top with firewood and mud to keep warm for summer use.

When the summer is hot, open the cellar, take out the well-preserved ice cubes and put them indoors to cool down and relieve the heat. "Kaiyuan Tianbao Legacy" records that some ingenious people carved ice into icebergs, which looked very cool and comfortable. Some people use ice cubes carved into hundreds of animal shapes to please North Korean dignitaries, which is also very popular.

Build a pergola

In addition to placing ice cubes, you can also build a "cool house". This kind of building is generally waterproof. Refrigeration equipment is installed in the cool room, and cold air is sent into the room through artificially generated wind.

Later, it evolved into sending cold water to the roof to make it flow down naturally to arouse water vapor and achieve the effect of refrigeration. Some people who can enjoy it also invite women to sing in the arbor, which is really a way to relieve the heat.

Although the conditions in ancient times were not as convenient as they are now, they used their wisdom to solve the summer heat and make life more comfortable and worry-free. In fact, in addition to these two methods, you can also build a house on the mountain for the summer.

It just takes a lot of manpower and material resources to get down, which is a bit extravagant. The simple compromise method is to cover the roof with tiles so that the indoor temperature is not affected by the outdoor temperature.

This is the life of the ancients in the sultry summer. In fact, no matter how they try, they can't be more comfortable and cool than turning on the air conditioner now.