How did Halloween start?

 Ready for a little education? So how did Halloween start? It all started a very long time ago with a group of ancient Celts (a group of pre-Christian people who loved nature). They though October 31st the end of the year and always had a huge party which was called Samhain. They celebrated it because of the autumn harvest and the Celtic new year, where they thought spirits could come back and visit there loved ones. They put out food and drinks for the dead and left their houses open to give the spirits a entrance into their homes. Some people thought that if you left "treats" on the porch for the ghosts, this would make them happy and would not harm anyone. Later on, when Christianity spread, November 1st became a religious holiday known as All Saints' Day. The prayer that was told on this day was called Allhallowmas. The night before become known as Halloween.