What is the origin of the winter solstice solar terms?

1, the origin of the winter solstice comes from the planning of a national capital. As early as more than 3,000 years ago, Duke Zhou began to measure the shadow with the earth gauge method and measure the position of the world in Luoyi. This was a move of political significance at that time, but it became one of the festivals that affected future generations for thousands of years.

2. The ancients said this about the winter solstice: When the cathode arrived, the yang began to grow, the sun went south, the day was short, and the shadow was long, so it was called "the winter solstice". The winter solstice is a very important solar term in the China lunar calendar, and it is also a traditional festival of the Han nationality in China.