Christmas Day is the holiday that the Christian world celebrates the
birth of Jesus. It is traditionally observed
on December 25 (some Eastern Orthodox Churches celebrate it on January 7). This date is the precise chronology of Jesus'
birth and death.One of the many aspects of
Christmas is the exchange of gifts by the imaginary character Santa Claus, decoration and display of the Christmas tree, and religious ceremonies.According to the tradition Santa is an old man with a red suit and long white beard.The ritual has developed around the Santa Claus figure that is normally performed by children hoping to receive gifts from him.In many languages the
sound Ho ho ho is the sound that Santa Claus makes when he laughs. ("
Ho, ho, ho! Merry Christmas!").