The American tradition of "trick-or-treating" probably dates back to the early All Souls' Day parades in England. During the festivities, poor citizens would beg for food and families would give them pastries called "soul cakes" in return for their promise to pray for the family's dead relatives.

"When the trees their summer splendor
Change to raiment red and gold,
When the summer moon turns mellow,
And the nights are getting cold;
When the squirrels hide their acorns,
And the woodchucks disappear;
Then we know that it is autumn,
Loveliest season of the year."
-   Carol L. Riser, Autumn