HALLOWEEN!!!

The word HALLOWEEN actually comes from the Catholic church´s term "All Hallows Eve".
All Hallows day or "All Saint´s day" was a Catholic holiday set aside to honor saints on November 1st. Celtic Ireland in the 5th century Bc believed that October 31st was the las day of summer, Which also started the Celtic New Year...

Do you want to know more enter to this link http://library.thinkquest.org/J0111082/html/Information/traditions.htm
there you will find more info about this amazing tradition.