5 Facts About Samhain, the Celtic Festival That Inspired Halloween

  • Pagan altar decorated for Samhain
Pagan altar decorated for Samhain
Credit: CaroleGomez/ iStock

Samhain, the ancient Celtic festival that inspired many of our modern-day Halloween traditions, represents the end of the harvest season and the onset of winter. An Irish Gaelic word that’s also used in Scottish Gaelic and Manx, “Samhain” translates to “summer’s end” and is pronounced “sow-in” (rhyming with “cow-in”). Traditionally celebrated on November 1, it marked the time when the harvest had been gathered and stored, cattle were moved to closer pastures, livestock were secured for the winter, and communities were hunkering down for the long, cold months ahead.

Samhain was also believed to be a time when the spirits of those who had died during the year traveled to the otherworld. People believed that during Samhain, the boundary between the living and the dead was at its thinnest, allowing the spirit world to interact with the human world. To protect themselves from restless or malevolent spirits, people would light fires, leave offerings for deceased loved ones, and wear disguises.

Today, much of what we know about Samhain is rooted in Irish mythology, making it difficult to discern truth from lore. But here are five things we do know about this ancient and mysterious holiday.

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It Dates Back to the Iron Age

Observed by the ancient Celts across Ireland, Scotland, and the Isle of Man, Samhain dates back to the Iron Age, more than 2,000 years ago. The Celts divided the year into two halves, Samhain (the darkness) and Beltane (the light). Those two halves were further divided by Imbolc (a holiday marking the beginning of the spring season) and Lughnasadh (marking the beginning of the harvest season). These four cross-quarter days, as they were known, were celebrated with fire festivals and were among the eight sacred days in ancient Celtic tradition, along with the spring and fall equinoxes and summer and winter solstices, known as quarter days.

Some historians believe that Samhain, which fell on the day that corresponds to November 1 on the contemporary calendar, marked the beginning of the Celtic new year, while others argue there isn’t enough evidence to support that hypothesis. What we do know for certain is that elements of Samhain influenced the celebration of Halloween as we know it.

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