In what country did Halloween originate? 

The tradition of carving a "jack o'lantern" is based on the story of Stingy Jack who trapped the Devil and was left to roam the earth as a ghost with a lump of coal in what carved out vegetable?

Some superstitions state that if you wear your clothes inside out and walk backward on Halloween, you'll see a witch at midnight.

Around the 1840s when there was a flood of Irish immigrants fleeing from the potato famine.