Happy Halloween! Here are some facts that you might not know about the spooky holiday. According to History.com, Halloween dates back to nearly 2,000 years ago as a pre-Christian Celtic festival. It wasn’t until the 1950s that Halloween was recognized as a family-friendly kid-centered holiday in the US. Today, Americans spend an estimated $2.5 billion on costumes each year and if you add in the amount of money spent on candy, American consumers spend an estimated $6 billion annually on Halloween. Halloween ranks the nation’s second-largest commercial holiday after Christmas.