According to Wikipedia Halloween is a celebration observed in a number of countries on 31 October. It begins the three-day observance of Allhallowtide, the time in the liturgical year dedicated to remembering the dead.
This is also a time for people to having fun on the streets walking disguised as monsters, zombies or superheroes. Halloween activities includes to carve pumpkins and put a candle inside which gives a nice light through the designs. It`s called Jack-o-lanterns.