A.
The date of the Spring Festival starts from the 1st day of the 1st solar month.
B.
It originated in the Shang Dynasty (c. 1600 BC-c. 1100 BC) from the people's sacrifice to gods and ancestors at the end of an old year and the beginning of a new one.
C.
Based on the phases of the moon, Chinese New Year occurs between the winter solstice and the spring equinox.
D.
There are a wide variety of traditional activities during the Spring Festival.