Boxing Day
The day after Christmas, the Feast of St. Stephen, the first Christian martyr, is better known as Boxing Day. The term may come from the opening of church poor boxes that day; maybe from the earthenware boxes with which boy apprentices collected money at the doors of their masters' clients.
Nowadays, we often see, in certain families, gifts (boxes) given to those who provide services throughout the year.
Ah, thank you. I know Canada celebrates Boxing Day.