CASE NOTES // INVESTIGATION: OCTOBER 31
Filed October 21, 2026
Every October, the same question returns to the evidence board: what is Halloween, and how did Halloween start? Search results offer competing verdicts. One calls it an ancient pagan ritual. Another calls it a Christian holiday. The modern streets offer candy, costumes, carved pumpkins, and images of the dead.
The detective's assignment is not to make that confusion disappear with a convenient story. It is to trace the records. Behind October 31 sit two different traditions: one associated with spirits and the seasonal turning of the year, the other with the Christian remembrance of saints. Their histories intersect, but historians still debate exactly how.
What Is Halloween?
The name gives away the first clue. “Hallow” is an older English word for a holy person or saint. All Hallows’ Eve means the evening before All Saints’ Day on November 1. The familiar shortened name “Halloween” became established in Scottish usage by the eighteenth century.
All Saints’ Day remembers the faithful departed who are honored as saints. All Souls’ Day, observed on November 2 in Western Christian tradition, developed separately as a day of prayer for the dead. The three dates became known collectively as Allhallowtide. None of those names means “night of demons.”
But the name is not the whole history of Halloween. In Ireland and Scotland, another seasonal tradition had long occupied this part of the calendar.
How Did Halloween Start? The Samhain Evidence
Samhain—often pronounced approximately “SOW-in”—marked the transition out of harvest and into the darker part of the year in Gaelic Ireland, with related traditions in Scotland. The festival belonged to the evening beginning October 31 and the day of November 1; in older Celtic reckoning, the day could begin at sunset.
Accounts connect Samhain with gatherings, feasting, bonfires, and stories about unusual proximity between the human world and the otherworld. Later folklore told of spirits or other beings moving more freely at the seasonal boundary.
Here is the caution missing from many viral accounts: detailed descriptions of ancient Samhain were often recorded centuries after the periods they describe, including in medieval texts preserved by Christian scribes. Historian Ronald Hutton treats the ancient customs and their modern reconstructions with care. Claims that every modern Halloween activity descends unchanged from an ancient Celtic ritual go further than the documentation allows.
Finding: Samhain is older than the medieval Christian observances associated with October 31. Its exact early rituals—and its influence on particular modern customs—remain debated.
What Is All Hallows’ Eve, and When Did the Church Begin Celebrating All Saints’ Day?
The Christian calendar leaves a second trail. In the early seventh century, Pope Boniface IV dedicated Rome's Pantheon to Mary and all martyrs; that dedication was associated with a May observance. In the eighth century, Pope Gregory III dedicated a chapel at St. Peter’s to all the saints and placed its observance on November 1. The November date became widely established across the Western church in the ninth century, often associated with Pope Gregory IV and the year 835.
A commemoration of All Souls’ Day on November 2 spread around the turn of the first millennium, particularly through monastic observance. The church calendar was now doing something different from the Samhain traditions: directing attention to remembered Christians and, in some traditions, prayer for the departed.
Did church leaders deliberately choose November 1 to replace Samhain? That is debated. The dates overlap, and later customs certainly influenced one another. But chronological overlap is not a surviving papal instruction saying, “Replace Samhain.” Claiming a documented one-to-one takeover would outrun the evidence.
Why Do Humans Celebrate Halloween With Games and Costumes?
By the nineteenth century, Halloween in Ireland and Scotland was not a single unbroken ancient ceremony. It included household gatherings, games, fortune-telling customs, masks, food, and social play. Daniel Maclise's 1833 painting Snap-Apple Night captures the crowded, lively world of an Irish Halloween gathering—a useful visual record of the period, not a photograph of ancient Samhain.

The costumes have several possible ancestors. In Scottish and Irish guising, people, especially children, dressed up and visited houses, sometimes performing a song, poem, or joke in exchange for food or small gifts. Tales about disguises confusing or avoiding spirits circulate in folklore, but treating that single explanation as the documented origin of every costume is too simple.
What Is the Origin of Trick or Treat?
Before plastic candy buckets, there were several door-to-door traditions. In parts of medieval Christian Europe, souling involved people visiting households for food, including soul cakes, sometimes offering prayers for the dead in return. Shakespeare refers to “a beggar at Hallowmas” in The Two Gentlemen of Verona, evidence that the association of begging and this season was familiar in his time.
Souling and guising are both relevant to the origin of trick or treat, but they should not be presented as a single, fully documented family tree. Customs mixed as Irish and Scottish communities migrated to North America. Mischief and neighborhood negotiations over food also shaped the modern practice.
The phrase “trick or treat” appears in a surviving 1927 newspaper account from Blackie, Alberta, Canada—one of the earliest known printed uses of the exact expression. The wording spread more widely after World War II, when neighborhood trick-or-treating became a familiar North American family activity. A 1927 printed record dates a phrase; it does not mark the invention of all door-to-door Halloween customs.
Why Were Pumpkins Originally Turnips? The Jack-o’-Lantern Story
The next object in the evidence locker is not a pumpkin. It is a turnip. Irish and Scottish lantern traditions used hollowed root vegetables, often cut with faces and lit from inside. The ghostly figures became connected in folklore with wandering lights and with stories such as Stingy Jack, a trickster condemned to roam with a light.

When Irish immigrants settled in the United States during the nineteenth century, pumpkins were abundant, larger, and easier to hollow than turnips. The pumpkin lantern became the more recognizable American symbol. The common question “why pumpkins were turnips” has the chronology backward: the turnip came first.
Why Is October 31 Also Reformation Day?
One calendar date, another Christian historical memory. On October 31, 1517, Martin Luther dated the Ninety-five Theses challenging the sale of indulgences. Protestant communities later commemorated the occasion as Reformation Day. The familiar scene of Luther fastening the theses to a church door is a traditional artistic depiction; historians debate exactly how the public posting occurred.

Reformation Day did not originate Halloween. It is an additional historical reason October 31 matters to Christians.
Should Christians Celebrate Halloween?
At this point, history can separate two streams without pretending every family makes the same decision. Samhain-related folklore concerned spirits, divination, and the boundary between worlds. All Hallows’ Eve and All Saints’ Day concerned the remembrance of saints and faithful Christians. Modern candy-and-costume customs grew through much later social changes.
Deuteronomy 18:10–12 rejects divination and attempts to consult the dead. That is a direct reason for Christians to reject occult practices rather than treating them as harmless spiritual experiments. Hebrews 12:1 speaks of a great cloud of witnesses, a useful text for reflection on faithful lives—though it is not itself an instruction to observe October 31.
A Christian can honor the remembrance of faithful believers while rejecting occult imagery, spirit-contact practices, and attempts at divination. Families differ over ordinary costumes, candy, church alternatives, and whether to participate at all. Those are conscience decisions, not facts an archaeologist can excavate.
Case finding: October 31 carries two historical strands on one date—spirits and saints. “Hallows” means saints. Knowing the distinction helps you decide what to remember, what to refuse, and what claims still deserve scrutiny.
Frequently Asked Questions About the History of Halloween
Is Halloween pagan or Christian?
Its history contains pre-Christian Gaelic seasonal traditions and a distinct Christian calendar of All Hallows’ Eve and All Saints’ Day. The degree of direct borrowing between them remains debated.
Did Halloween originate with Samhain?
Samhain predates the Christian November observances and influenced later folklore. But Halloween's present customs did not all arrive directly and unchanged from Samhain.
What does All Hallows’ Eve mean?
It means the evening before All Saints’ Day, November 1. “Hallow” means a saint or holy person.
When did trick-or-treating begin?
Door-to-door customs such as souling and guising are older. The phrase “trick or treat” has an early printed record in Alberta, Canada, in 1927, and became widely familiar after World War II.
Can Christians observe All Saints’ Day without celebrating Halloween?
Yes. Remembering faithful Christians and abstaining from occult-themed practices are compatible choices. Christians differ over other secular customs such as candy and costumes.
Sources and Historical Records
- Ronald Hutton, The Stations of the Sun: A History of the Ritual Year in Britain (Oxford University Press, 1996).
- Encyclopaedia Britannica — Halloween and All Saints’ Day.
- English Heritage — Soul Cakes.
- Heritage Park — The 1927 Alberta trick-or-treat record and CBC's historical coverage.
- Deuteronomy 18:10–12; Hebrews 12:1.
For more evidence-led investigations, visit the Gospel Noir YouTube channel.
File updated. Case not closed.
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