What is the difference between traditional Chinese festivals and the 24 Solar Terms?

The twenty-four solar terms are a supplemental calendar used to guide farming in ancient China, which was developed during the Spring and Autumn period and the Warring States period. Because the Chinese lunar calendar is a "yin and yang calendar", i.e., based on the operation of the sun and the moon, so it can not fully reflect the solar cycle, but China is an agricultural society, agriculture needs to strictly understand the operation of the sun, farming is based on the sun, so in the calendar to add a separate reflection of the solar cycle Therefore, the "twenty-four solar terms" were added to the calendar to reflect the sun's cycle alone, and were used as a criterion for determining leap months. The 24 Solar Terms reflect the changes of the seasons, guide agricultural activities, and affect the food, clothing, housing, and transportation of thousands of families. The 24 solar terms are based on the sun's position on the ecliptic, the Earth's orbit around the sun.

And most of the traditional festivals have some allusion to their origins, such as today's Dragon Boat Festival, which used to commemorate Wu Zixu and then Qu Yuan

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