The Surprising Pagan Backgrounds Of Nine Popular Holiday Traditions, From Christmas Trees To Caroling

Published December 24, 2025

Celebrating Christmas On December 25 Started With The Pagans

Although Dec. 25 is celebrated as the birthday of Jesus, the Bible doesn’t actually say when Christ was born. In fact, context from the Gospels suggests that it’s more likely the actual date fell in the spring or autumn.

Birth Of Christ

Public DomainThe Adoration of the Magi, a 15th-century painting by Giovanni di Paolo.

So, why do we celebrate Christmas in December? It may all go back to Saturnalia.

Under the reign of Emperor Constantine (306 C.E. to 337 C.E.), Christianity spread throughout the Roman Empire. In 336, the Church officially began observing Christmas on Dec. 25 — perhaps so that it would weaken Saturnalia festivities and the pagan beliefs that went along with them.

Saturnalia Celebration Pagan Christmas Traditions

Public DomainSaturnalia was observed between Dec. 17 and 23 to celebrate the winter solstice.

Constantine wanted Rome to leave paganism behind and adopt Christianity as its official religion. Introducing a Christian holiday that would be celebrated at the same time as Saturnalia allowed the pagan festival to gradually be absorbed into Christmas. Its decorations and traditions were co-opted, but the symbolism behind them was changed into something more biblical.

author
Ainsley Brown
author
Based in St. Paul, Minnesota, Ainsley Brown is an editorial fellow with All That’s Interesting. She graduated with a Bachelor's Degree in journalism and geography from the University of Minnesota in 2025, where she was a research assistant in the Griffin Lab of Dendrochronology. She was previously a staff reporter for The Minnesota Daily, where she covered city news and worked on the investigative desk.
editor
Cara Johnson
editor
A writer and editor based in Charleston, South Carolina and an editor at All That's Interesting since 2022, Cara Johnson holds a B.A. in English and Creative Writing from Washington & Lee University and an M.A. in English from College of Charleston. She has worked for various publications ranging from wedding magazines to Shakespearean literary journals in her nine-year career, including work with Arbordale Publishing and Gulfstream Communications.
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Brown, Ainsley. "The Surprising Pagan Backgrounds Of Nine Popular Holiday Traditions, From Christmas Trees To Caroling." AllThatsInteresting.com, December 24, 2025, https://allthatsinteresting.com/pagan-christmas-traditions. Accessed December 25, 2025.