What are the serious cold waves in ancient times, how did the ancients spend the cold weather?

We all know that winter is very cold, in ancient times, heating probably can only rely on the fire, but there is no advanced cold technology in ancient times, there is no good medical equipment, the ancient people may get a small cold, may be sick to death. So what are the ancient times we know what serious cold wave? And how did the ancients survive?

Ancient times there have been four very strong cold waves, the first is in the Western Zhou Dynasty, the degree of cold, even the animals can not stand, tigers and leopards have begun to migrate, can be imagined that it is very cold. The second was in Liaodong Bay, where the ice froze for three years in a row, never melting. The third time is in the Southern Song Dynasty, the Suzhou-Hangzhou Canal often ice, so that the Jin Dynasty south. The fourth time was at the end of the Ming Dynasty and the beginning of the Qing Dynasty, when the average temperature was much lower than usual. Ancient people unlike modern people have down jackets, heating, air conditioning and other equipment, even if the cold is not afraid, then the ancients at that time when faced with the cold wave, or think of a lot of ways.

One is to plant the cotton made of clothing sewn inside the clothes to protect against the cold. The ancients planted cotton, in addition to selling it to earn money, in winter, they would also sew the cotton inside the clothes, so that it would not be too cold. Rich people would also buy some animal fur to make outerwear, so it is even warmer. The second is to sew some of their own small objects, such as gloves, scarves, etc. to protect themselves from the cold. They usually stocked up on winter goods before winter came, but people still wrapped themselves up in thicker clothing. Thirdly, they built kangs to protect themselves from the cold. In the Han Dynasty, there is a record of the kang, people use the earth to build a rectangle, the top can sleep, there are holes can be used to make a fire, this is a good way to kill two birds with one stone, can be used for cooking, but also used to keep out of the cold, until now, people in the kiln inside the kang can still be seen, but also with this ancient method of cold.

In fact, there are many other ways to protect yourself from the cold in ancient times, so I won't list them all here. Rich people don't have to worry about the coming of winter at all, and the ones who are most worried about it should be the ordinary people and the poor people, as there are many people who died of wind and cold every year in ancient times.