50 Kids’ Halloween Costumes So Clever, You Might Wish You Thought Of Them First (New Pics)

These kids’ costumes are both impressive and adorable. We all love Halloween for that: for its creativity, imagination, and the excuse to transform into someone (or something) else for a night.

But have you ever stopped to wonder where all these traditions we’ve grown to love—the pumpkins, the costumes, the candy—actually came from? Turns out, Halloween has a history that’s just as fascinating as the holiday itself.

As Heather Thomas, a reference librarian at the Library of Congress, explains, the spooky celebration traces its roots back over 2,000 years to the ancient Celtic festival of Samhain (pronounced “SAH-win”).

It marked the end of summer and the start of the dark, cold winter, a time when people believed the boundary between the living and the dead was at its thinnest. To keep wandering spirits at bay, they’d light bonfires and wear disguises to confuse or frighten them. So yes, those creative kids’ costumes have some very ghostly origins.

When Christianity spread through Europe, Pope Gregory III established All Saints’ Day on November 1, blending new and old traditions. The evening before became known as All Hallows’ Eve, eventually shortened to Halloween.

Over time, people continued the Celtic habit of dressing up, but the intent slowly changed from protection to play. By the early 20th century, Halloween disguises were still spooky—think ghosts, witches, and skeletons—but were already becoming more about fun than fear.

Carving pumpkins is another tradition that began long before we were lining up at pumpkin patches. According to Thomas, the first “Jack-o’-lanterns” were actually carved from turnips in Ireland.

They were inspired by the legend of Stingy Jack, a man who tricked the Devil and was doomed to wander the earth with only a burning coal inside a carved-out turnip to light his way.

When Irish immigrants came to America in the 1840s, they discovered pumpkins—bigger, softer, and perfect for carving. And just like that, the Halloween symbol we all know and love was born.

Then there’s trick-or-treating, the sweetest tradition of all. Its exact origin is debated, but there are several possible beginnings. Some historians believe it started with Celts leaving food out for spirits on Samhain. Others connect it to the medieval custom of souling, when people would go door to door offering prayers for the dead in exchange for food.

Later came the Scottish and Irish practice of guising—dressing up and performing songs or tricks for treats. And in America, it likely merged with a German-American Christmas custom called belsnickeling, where kids in disguise visited neighbors for sweets if their identities couldn’t be guessed.

Over time, Halloween became less about spirits and more about community. By the 1930s and 1940s, costume parties and neighborhood gatherings replaced the rowdier “trick” traditions that had led to vandalism and pranks.

The Children’s Theatre Company notes that during the Great Depression, families made homemade costumes, often inspired by folklore or new pop-culture icons like Mickey Mouse. By the 1950s, mass-produced costumes hit the shelves, and superheroes, princesses, and movie monsters joined the mix, transforming Halloween into the fun, candy-filled night kids look forward to today.

Even the colors of Halloween have ancient roots. Black symbolized the “death” of summer, while orange stood for the harvest and warmth of autumn. Black cats, meanwhile, became tied to superstition in the Middle Ages, when they were associated with witches and the Devil. That spooky link stuck around, and now, no Halloween decoration feels complete without one.