The Mid-Autumn Day is a Chinese festival celebrated on the 15th day of the 8th month of the lunar calendar. According to legend, the archer Hou Yi shot down nine of ten suns in the sky, leaving just one, and was rewarded with an elixir of immortality by the Queen of Heaven. Hou Yi refused to become immortal without his wife Chang'er, so she ingested the elixir and floated to the moon. Hou Yi would offer fruits and cakes to Chang'er on the moon during the festival, beginning the tradition of family reunions and mooncake eating during the Mid-Autumn Day.