Halloween comes from the word All Hallows Eve which means the night before the holiday of all saints.
Celtic believes that on the night of Halloween, the spirits of people who have died back to the world to visit their families.
The tradition of wearing Halloween costumes comes from the belief that by dressing like that, people will look like spirits and become unknown to those who have died.
Pumpkin fruit becomes a symbol of Halloween because it can be included in a candle and used as a decoration lamp.
The tradition of asking for candy on the night of Halloween comes from Celtic's belief that giving food offerings can prevent home from evil spirits.
In Mexico, Halloween is celebrated as him de los miertos or the day of the dead. The community makes altar to respect people who have died and prepare special food for them.
In some countries, such as Germany and Austria, there are Halloween traditions called routes. People make a statue from straw and burn it on the night of Halloween to drive out evil spirits.
In Ireland, people eat Halloween cakes made from potatoes, sugar, and spices.
In the UK, there is an Apple Bobbing tradition which means looking for apples. People try to take the floating apples in the water with their mouths without using their hands.
In Scotland, there is a tradition of guissing which means disguised. Children wear costumes and dance in front of houses to get candy or coins.