When was Halloween first celebrated in the United States?
A During the American Revolution
B In the mid-1800s
C After World War I
The tradition originated with the ancient Celtic festival of Samhain, when people would light bonfires and wear costumes to ward off ghosts. Irish immigrants escaping the Potato Famine brought elements of the festival to the US, where it developed into the Halloween we know today.
The correct answer is In the mid-1800s.