Since I am behind a bit (I have been fighting a double ear infection and a nasty cold), I am including links to a few websites that tell the history of Halloween. I am leaving it up to you as parents to decide what you want your children to know. Personally, at this age, we are leaving it as Halloween is also called All Hallow's Eve and November 1st is All Saints Day. Once they are older, we may delve more into the history of Halloween.
The Holiday Spot