Here's some fun facts for you on the topic of Halloween!

1. *Origins in Samhain*: Halloween has its roots in the ancient Celtic festival of Samhain, which marked the end of the harvest season and the beginning of winter. It was believed that on the night of October 31st, the boundary between the living and the dead was blurred, and spirits could return to Earth.

2. *Jack-O'-Lanterns*: The tradition of carving pumpkins into Jack-O'-Lanterns comes from an Irish legend about a man named Stingy Jack. According to the story, Jack made a deal with the Devil and carved out a turnip to carry a coal to light his way. This gave rise to the tradition of using pumpkins or turnips as lanterns during Halloween.

3. *Candy Galore*: Halloween is a candy lover's dream. Americans spend billions of dollars on Halloween candy each year, making it a sweet holiday. It's a time when children and adults alike indulge in their favorite treats. Reese's is the most popular nationwide. 

4. *Second-Largest Commercial Holiday*: In the United States, Halloween is a significant commercial holiday. It comes second only to Christmas in terms of consumer spending on decorations, costumes, candy, and more. Horror movies naturally see a rise in sales too. 

5. *Costumes*: Dressing up in costumes is a significant part of Halloween fun. The practice of wearing costumes on Halloween is thought to have originated from the ancient Celtic belief that disguising oneself would protect against evil spirits. Witch costumes are the most popular, generally. 

6. *Trick-or-Treating*: The tradition of trick-or-treating has its roots in various customs, including a medieval practice called "souling" in which people went door-to-door, offering prayers for the dead in exchange for food. It has evolved into the modern-day Halloween tradition of children going door-to-door for candy. In theory, kids either want a treat, or they make a lighthearted threat to trick. 

7. *Haunted Houses*: Haunted houses and mazes are popular attractions during Halloween. Some people transform their homes or local attractions into spooky haunted houses for entertainment, providing visitors with thrilling, scary experiences. Ohio has the most of any state!

8. *Black Cats*: Black cats have a long history of superstition surrounding them. They are often associated with witches and bad luck, making them a common symbol of Halloween. In all reality, they could not be any more harmless and cute!

9. *Dia de los Muertos*: Halloween is sometimes associated with Dia de los Muertos, a Mexican holiday that honors deceased loved ones. Dia de los Muertos is celebrated from October 31st to November 2nd and includes traditions such as creating colorful sugar skulls and ofrendas (altars) for the deceased.

10. *World Record*: The largest pumpkin ever recorded weighed over 2,600 pounds! It was grown in Belgium in 2016. Growing gigantic pumpkins has become a competitive sport in some places, with enthusiasts vying to break records.

11. *Bobbing for Apples*: This Halloween game has its roots in ancient Roman traditions, particularly the festival of Pomona, the goddess of fruit trees. It was believed that the first person to bite into an apple would be the next to marry.

12. *Halloween Colors*: The traditional Halloween colors, orange and black, have symbolic meanings. Orange represents the harvest and autumn, while black is associated with the darkness of night and the theme of death often present in Halloween traditions.

13. *Superstitions*: Halloween is a time associated with various superstitions. One example is the belief that you can see your future spouse by looking in a mirror in a darkened room at midnight on Halloween, a tradition rooted in folklore and romantic superstition.