Samhain is observed from sunset on October 31st to sunset on November 1st.
It is the celebration that is the origin of Halloween.
Samhain was first observed by Celtic Pagans.
Samhain marked the Celtic New Year, the end of summer, and the end of the harvest season
October 31 became known as All Hallows Eve, or Halloween, and contained much of the traditional pagan practices before being adopted in 19th-century America through Irish immigrants bringing their traditions across the ocean
For the Celts, who lived during the Iron Age in what is now Ireland, Scotland, the U.K. and other parts of Northern Europe, Samhain (meaning literally, in modern Irish, “summer's end”) marked the end of summer and kicked off the Celtic new year
According to the later Dindsenchas and the Annals of the Four Masters—which were written by Christian monks—Samhain in ancient Ireland was associated with a god or idol called Crom Cruach.
Samhain, also known as the origin of Halloween, was a powerful and special demon of Hell and was one of the 66 Seals. He could only rise when summoned by two powerful witches through three blood sacrifices over three days, with the last sacrifice day on the final harvest, Halloween.
If we define it as a celebration of the pre-Christianization or kind of the Mexican Day of the Dead or the Irish Samhain, the Viking did have that kind of celebration. The Vikings themselves had the celebrations called the Blóts
In addition to being a time to honor family members, friends and pets who have passed away, Samhain is the final harvest holiday and marks the end—and therefore beginning—of a new cycle on the Wheel. Most Wiccans believe in reincarnation and view death as simply another stage of life.
The name Halloween comes from a Scottish shortening of All Hallows' Eve
In the eighth century, Pope Gregory III designated November 1 as a time to honor saints. Soon after, All Saints Day came to incorporate some of the traditions of Samhain. The evening before All Saints Day was known as All Hallows Eve, and later, Halloween.
Many Christians believe that participating in Halloween is a form of involvement in the worthless deeds of evil and darkness, which is forbidden in Scripture: Ephesians 5:7-15. Don't participate in the things these people do. For once you were full of darkness, but now you have light from the Lord
On the night of October 31 they celebrated Samhain, when it was believed that the ghosts of the dead returned to earth. In addition to causing trouble and damaging crops, Celts thought that the presence of the otherworldly spirits made it easier for the Druids, or Celtic priests, to make predictions about the future.
Samhain was known in Ireland as the “Lord of Darkness”. The Druid religion was practiced by ancient Celtic tribes that populated Ireland and parts of Europe. This religion worshipped Samhain, the Lord of Darkness. Some writings also speak of Samhain as the “Lord of the Dead”
All Hallows Eve eventually became Halloween. “Although All Saints Day is actually on November 1, the Celts began their festivals at sunset, so the holiday began on the evening before (Oct. 31)