Final answer:
Halloween in the early 20th century brought together scary icons and characters like ghosts, witches, vampires, and skeletons.
Step-by-step explanation:
In the early 20th century, a popular tradition called Halloween emerged in the United States. During Halloween, people would dress up in scary costumes and go door to door asking for treats, a practice known as trick-or-treating. This tradition brought together various scary icons and characters such as ghosts, witches, vampires, and skeletons.
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