Beyond causing mischief and damaging crops, Celts thought these returning spirits could also make it easier for the Druids, or Celtic priests, to predict the future. For a people entirely dependent on the volatile natural world, these prophecies were an important source of comfort and stability during a long, dark winter.
To commemorate the event, Druids built huge sacred bonfires where people gathered to burn crops and animals as sacrifices to Celtic deities. During the celebration, the Celts wore costumes, typically made of animal heads and skins, and told each other’s fortunes.
When the celebration was over, they re-lit their home's hearth fires, which they had extinguished earlier that evening, from the sacred bonfire to help protect them during the coming winter.
Did you know?
One-quarter of all the candy sold annually in the United States is purchased for Halloween.
By A.D. 43, the Roman Empire had conquered most Celtic territory. During the 400 years it ruled the Celtic lands, two Roman festivals were combined with the traditional Celtic celebration of Samhain.
The first was Feralia, a day in late October when the Romans commemorated the passing of the dead. The second honored Pomona, the Roman goddess of fruit and trees. Pomona’s symbol is the apple, and the incorporation of her celebration into Samhain likely explains the Halloween tradition of bobbing for apples.
All Saints’ Day
On May 13, 609, Pope Boniface IV dedicated the Pantheon in Rome to all Christian martyrs, establishing the Catholic feast of All Martyrs Day in the Western church. Pope Gregory III later expanded the festival to include all saints as well as martyrs, and moved the observance from May 13 to November 1.
By the ninth century, the influence of Christianity had spread into Celtic lands, gradually blending with and supplanted older Celtic rites. In 1000 A.D., the church made November 2 into All Souls’ Day, a day to honor the dead. Many believe the church created the holiday to replace the Celtic festival of the dead with a related, church-approved observance.
All Souls’ Day was celebrated much like Samhain, with big bonfires, parades and dressing up in costumes as saints, angels and devils. The All Saints’ Day celebration was also called All-hallows or All-hallowmas (from Middle English Alholowmesse meaning All Saints’ Day) and the night before it, the traditional night of Samhain in the Celtic religion, began to be called All-Hallows Eve and, eventually, Halloween.
All Souls Day and Soul Cakes
The Halloween tradition of trick-or-treating probably dates back to the early All Souls’ Day parades in England. During the festivities, poor citizens would beg for food, and families would give them pastries called “soul cakes” in return for their promise to pray for the family’s dead relatives.
The distribution of soul cakes was encouraged by the church as a way to replace the ancient practice of leaving food and wine for roaming spirits. The practice, which was referred to as “going a-souling,” was eventually taken up by children who would visit the houses in their neighborhood and be given ale, food and money.
The tradition of dressing in costume for Halloween has both European and Celtic roots. Hundreds of years ago, winter was an uncertain and frightening season. Food supplies often ran low and, for many people afraid of long, dark nights, the short days brought constant worry and possible signs of seasonal affective disorder.
On Halloween, when people believed ghosts returned to the earthly world, they feared encountering spirits if they went outside. To avoid being recognized, they wore masks after dark so ghosts would mistake them for fellow spirits.
To keep ghosts away from their homes, people also placed bowls of food outside to appease the spirits and prevent them from coming in.
How Did Halloween Start in America?
The celebration of Halloween was extremely limited in colonial New England because of rigid Protestant beliefs. Halloween was more commonly recognized in Maryland and the southern colonies.
As the beliefs and customs of different European ethnic groups and Native Americans meshed, a distinctly American version of Halloween began to emerge. The first celebrations included “play parties,” which were public events held to celebrate the harvest. Neighbors would share stories of the dead, tell each other’s fortunes, dance and sing.
Did you know?
More people are buying costumes for their pets. Americans spent some $700 million on costumes for their pets in 2024—more than three times what they spent in 2010.
Colonial Halloween festivities also featured the telling of ghost stories and mischief-making of all kinds. By the middle of the 19th century, annual autumn festivities were common, but Halloween was not yet celebrated everywhere in the country.
In the second half of the 19th century, America was flooded with new immigrants. These new immigrants, especially the millions of Irish fleeing the Irish Potato Famine, helped to popularize the celebration of Halloween nationally.
Gallery: White House Halloweens