It all goes back to the ancient Celtic festival of Samhain when the Celts used to mark the end of summer and the beginning of the cold winter, a time that was associated with human death.
In that date, poor people wore costumes to ward off the ghosts and visit the houses of rich families to receive pastries called "soul cakes" in exchange for a promise to pray for the souls of the homeowners’ dead relatives.
In the second half of the nineteenth century people from that culture started to emigrated to America, which helped to popularize the celebration around the world.
The Americans taking from English and Irish traditions, began to dress up in costumes and go house to house asking for money or food, a practice that eventually became today’s “trick-or-treat” tradition.
Here we let you some others interesting facts about this special day:
Fact #1: One quarter of all the candy sold annually in the U.S. is purchased for Halloween.
Fact #2: Halloween is the second most commercial holiday after Christmas in America!.
Fact #3: Originally, you had to dance for your "treat".
Fact #4: The tradition of dressing in costume for Halloween has both European and Celtic roots.
Fact #5: The word Halloween is an abbreviation of the phrases All Hallows' Eve or All Hallows' Evening.
And yourself, do you celebrate this holiday or not?