History of Halloween

The celebration of Halloween is nothing like it's origin. The holiday actually started as the Celtic festival of Samhain (pronounced SOW-ain), which was the New Years Eve celebration of the Celts. That eventually blended with the Roman Church's All Saints Day.
Samhain was a celebration honoring the end of summer and the beginning of harvest time, it marked a period of cold, darkness and the death of winter. The Celts thought that at the end of the year the barrier between the living and the dead was at it weakest. That on October 31st the spirits of the dead would come to the realm of the living and wreak havoc such as destroying crops with frost. So then the Roman Church named November 1st as All Saints Day (aka All Hallows Eve) as a way to combat the spirits.
So Halloween is a mixture of celebrations from the Celtics and the Romans. Their celebrations or Samhain and All Saints Day have mixed to what we all know as Halloween. So there is some history on one of the worlds most beloved holidays.