First of all, I'de like to send my best wishes to everyone recovering from the terrible effects of the hurricane in the North East US. Hope everything goes bck to normal real soon and you can enjoy of some Trick or Treating.
All Hallows Eve or Halloween is a celebration that in many countries is believed to have come from the Celtic celebration of Samhain, which is the day that marks the end of the harvest and the beginning of the winter.
On this day, it is believed that the spirits of the dead would come out and visit their homes and people celebrated them. Also, with them the eveil spirtits would come out and for the reason people would dress up, so they could scare and confuse the evil sprits away.
There is also the belief that Halloween has more to do with the Christian celebration of All Saints Day and All Sould Day. During the Middle Ages this custom took root where poor children would go out collecting Soul Cakes, which were pastries made in honor of the recently departed.
Tradition says that the recently departed would seek vengeance from those who had harmed them and for the reason, people would go out wearing masks to avoid being punished.
The tradition expanded to the American continent not until the 19th century with the migration of large numbers of people originating from Scotland and Ireland. One of the most representative examples of the influence of Halloween in culture is the film from 1929 by Walt Disney, where 4 skeletoons dance in a Danse Macabre style around a graveyard... Enjoy the CARTOON.