The Seventh day of the Lunar New Year is commonly referred to as “Ren Ri” (the day of human), because according to the legend, Nu Wa (a Goddess in Chinese mythology who is believed to create the world and human beings) created human beings on the seventh day.
Humans were made using mud, mixing yellow soil and water. Also, human learned about marriage; so human could reproduce themselves.
Therefore, the seventh lunar day of the year becomes everyone’s birthday.
The Haus of Dcaligari 