When Is Halloween 2025?
Halloween 2025 will fall on Friday, October 31st, lighting up the night with glowing jack-o'-lanterns, spooky costumes, and eerie enchantments. Celebrated across the world, Halloween is a holiday steeped in ancient tradition, modern innovation, and cultural evolution. For many, it's a time of celebration, storytelling, and magic—but the roots of Halloween go far deeper than the decorations and sweets.


What is the History of Halloween?

The word Halloween derives from “All Hallows’ Eve,” the night before All Saints’ Day, which was established by the Catholic Church to honor saints and martyrs. But Halloween’s roots reach even further back, deeply tied to the Celtic festival of Samhain, a Gaelic celebration that marked the end of harvest and the beginning of winter.

Haunted History of Halloween

The ancient Irish Celts believed that on the night of Samhain (pronounced "sow-in"), the veil between the living and the dead grew thin. Spirits of ancestors could cross into the mortal world, while malicious entities might also wander. Bonfires were lit, costumes worn, and offerings left for the dead. This was the spiritual heart of what we now call Halloween.

Did You Know?

Halloween's connection to Ireland is undeniable. Samhain was celebrated in the Boyne Valley and around sites like Tara and Newgrange, where the Irish marked the seasonal shift with rituals and feasts. Halloween isn't just a holiday—it's part of the Irish soul.

Halloween Timeline: How the Holiday Has Changed Over the Centuries

  • 2,000+ years agoSamhain was celebrated across Celtic Ireland and Britain

  • 8th century – Pope Gregory III designates November 1 as All Saints’ Day

  • Middle Ages – Soul cakes are given to beggars in exchange for prayers for the dead

  • 1800s – Irish immigrants brought Halloween to America

  • 1930s-40s – Trick-or-treating becomes widespread in the U.S.

  • 2000s – Halloween becomes a $10+ billion industry, with a global cultural reach


All Saints' Day

Celebrated on November 1st, All Saints’ Day honors all known and unknown saints. The evening before, known as All Hallows’ Eve, became Halloween. This day blended Christian reverence with earlier pagan traditions to create the modern Halloween.


How Did Halloween Start in America?

When Irish and Scottish immigrants fled famine and hardship in the 19th century, they brought their Halloween customs with them. Carving turnips turned into pumpkins, and ghost stories evolved into horror movies.

Did You Know?

The first widespread Halloween celebrations in America included parties, ghost stories, and mischief. In early New England, Halloween was suppressed by Puritans, but it flourished in southern and Catholic communities.


Halloween at the White House

Halloween has even haunted the halls of the White House! Presidents and First Ladies have hosted Halloween celebrations since the mid-20th century. From Jacqueline Kennedy's costumed children to Michelle Obama's haunted garden trails, Halloween at 1600 Pennsylvania Avenue is filled with spooky charm.


Related Stories

Who Invented Candy Corn?

Candy corn, a Halloween staple, was invented in the 1880s by George Renninger, an employee of the Wunderle Candy Company. Originally called “Chicken Feed,” this tricolor candy remains a divisive Halloween treat.


History of Trick-or-Treating

Trick-or-treating dates back to medieval souling, where beggars received soul cakes in exchange for prayers for the dead. This morphed into guising in Scotland and Ireland, where children performed tricks for food or coins.

Trick or Treating's Tricky History

In 1930s America, Halloween pranks became destructive, prompting communities to tame the night with candy incentives. This is how the sweet side of Halloween took hold—and the phrase "trick or treat" became a holiday mainstay.


Halloween Parties

Modern Halloween parties are filled with costumes, games, and treats, but this, too, has roots in Irish culture. Samhain gatherings involved divination rituals, storytelling, and feasting. Today’s Halloween gatherings mirror this ancient desire to connect, reflect, and revel in the unknown.


Halloween Movies

From Hocus Pocus to Halloween (1978) to modern thrillers like The Witch, Halloween movies play on our deepest fears and superstitions. Many Halloween films draw on European folklore, Irish ghost tales, and Gothic storytelling to capture the season’s eerie magic.


Interesting Related Fun Stories

‘Arsenic and Old Lace’: The Real Murders Behind the Halloween Classic Film

Though fictional, this Halloween comedy-thriller was inspired by actual 20th-century crimes committed by women posing as kind caretakers. The film’s eerie undertones mirror Halloween’s blend of humor and horror.

Frankenstein Author Carried Around Her Dead Husband's Heart

Mary Shelley, famed for her Gothic novel Frankenstein, supposedly kept her husband’s calcified heart in her writing desk. Such macabre true tales often resurface around Halloween, proving that real history can be stranger than fiction.


All Souls Day and Soul Cakes

Celebrated on November 2nd, All Souls Day honors the faithful departed. Soul cakes—round buns given out for prayers—are an early form of Halloween treat-giving. In Ireland and Britain, children once roamed the streets singing for cakes, marking the origins of modern Halloween traditions.


Halloween Costumes Through the Ages

Early Halloween costumes were simple disguises—animal skins, dark cloth, or masks—to confuse spirits. In Ireland, people wore costumes during Samhain for protection. Today, Halloween costumes range from silly to scary, but their origins lie in spiritual defense.


Black Cats and Ghosts on Halloween

Black cats have long been associated with witches, Halloween, and bad luck—but in ancient Celtic culture, cats were guardians of the spirit world.

Why Black Cats Are Associated With Halloween and Bad Luck

In the Middle Ages, black cats were feared as familiars of witches. Their association with Halloween stems from both folklore and visual symbolism—midnight shadows, glowing eyes, and mysterious behavior made them perfect icons for the night of ghosts and ghouls.


Halloween Matchmaking and Lesser-Known Rituals

Halloween once included matchmaking rituals. In Ireland, girls placed apple peels over their shoulders or mirrors under pillows to dream of their future husbands. Nuts were roasted in the fire to divine romantic fate. While forgotten by many, these sweet rituals highlight Halloween's lighter, love-oriented past.


More Interesting Related Halloween Stories

‘Pumpkin Spice’ Has Been a Thing for 3,500 Years

Long before Starbucks made it trendy, spices like cinnamon, nutmeg, and clove were used in ancient Egyptian embalming. These same warm spices are now linked with Halloween pies, scents, and seasonal nostalgia.

Halloween Was Once So Dangerous That Some Cities Considered Banning It

During the early 20th century, Halloween pranks escalated to arson and vandalism in American cities like Chicago and Detroit. Communities considered banning Halloween entirely—until civic leaders reimagined it as a child-friendly candy night.


About the Author

This Halloween article was created by The Irish Jewelry Company, blending Irish heritage with haunting beauty. From Celtic cross pendants to Samhain-inspired pieces, we invite you to explore our Halloween-themed jewelry collection, crafted to protect, inspire, and enchant.

Explore Celtic magic this Halloween:
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Fact Check
All historical information has been cross-referenced with sources such as:

  • National Museum of Ireland

  • History Channel

  • Smithsonian

  • Catholic Encyclopedia

  • Harvard Folklore Archives


Citation Information

  • “Halloween,” Encyclopedia Britannica

  • “Samhain,” Irish Pagan School

  • “All Saints' Day,” Catholic Online

  • “History of Trick-or-Treating,” NPR

  • “The Origins of Candy Corn,” National Confectioners Association