What did the ancients do during the Great Cold Festival?

What you want to ask is "What did the ancients do in the cold season?" In the cold season, the ancients collected ice cubes.

In the cold, the temperature is very low. In the past, people took out ice and stored it for use in summer.

The Great Cold is the last of the 24 solar terms. The great cold solar term is from March 9 to April 9, and the cold wave frequently goes south, which is the coldest season of the year. The great cold comes at the end of the year, winter goes to spring, and after the great cold, a new cycle begins. In some parts of China, during the period from the Great Cold to beginning of spring, there were many important folk customs, such as taking off old cloth to make bacon, offering sacrifices to stoves and ending sumptuous food.