One of the most interesting facts about Halloween is how the whole costume tradition came to be. The ancient Celts originally started this practice during Samhain. They believed that evil spirits would roam the earth during the seasonal transition, coming into contact with the living and potentially harming them. In order to confuse those evil spirits, people dressed up in disguises to ward them off. You can learn more about Celtic traditions in the History Channel guide to Halloween origins. Obviously, the tradition of putting on creative Halloween costumes stuck around long after the original fear faded.

The tradition of trick-or-treating as we know it today started in the United States around the mid-1920s. People thought that it would be fun for neighborhood kids to dress up, knock on doors, and ask homeowners if they would like to be "tricked" or if they would give a "treat." While ancient Celts were busy wearing disguises to ward off spirits, Americans turned door-to-door visits into a community ritual. Back then, more harmless pranks tended to happen because homeowners were not yet used to the request and often did not have treats ready. Over time, giving out sweet treats and candies became a central part of this time-honored tradition.

Once called All Hallows' Eve, Halloween served as the precursor holiday for the Catholic observance of All Souls' Day, which is celebrated on November 1st. According to records at the Library of Congress historical archives, the holiday is closely connected to the ancient Celtic festival of Samhain, a harvest celebration marking the end of summer and the beginning of winter.

The traditional colors of Halloween are black and orange, and each holds a deep symbolic meaning. Black represents those who have passed on and are remembered during this time of year, as well as the dark winter months ahead. Orange stands for endurance and strength, signaling that individuals will make it through the harvest season into spring.

The tradition of carving lanterns began in Ireland and Scotland, where people carved eerie faces into root vegetables to scare away evil spirits. Irish immigrants brought the tradition over to the United States, but because turnips were not as easily accessible or inexpensive, they quickly adopted native pumpkins, which were plentiful, soft, and easy to carve.

Before pumpkins became the standard choice for carving, Europeans carved a variety of vegetables:

Believe it or not, Charles Schulz's beloved Peanuts comic strip and television specials helped popularize the Halloween customs we celebrate today. Dressing up, visiting pumpkin patches, and trick-or-treating were brought into pop culture stardom by Charlie Brown, Lucy, Linus, Snoopy, and the rest of the gang.

Halloween is a cherished holiday across the United States, and many cities hold elaborate annual parades to celebrate it. Famous events like the official Village Halloween Parade in New York City, along with festivities in Salem and New Orleans, draw massive crowds each year, while small towns everywhere host their own costume parades.

I can honestly say that Halloween remains one of my absolute favorite holidays. Even though I smile when stores start stocking Halloween decorations as early as August, I always get genuinely excited as October approaches. Learning about the origins behind these traditions makes the holiday even more fun. Which of these Halloween facts surprised you the most?