One of the oldest Halloween traditions comes from the ancient Celts， who lived in western and central Europe long ago. The Celts celebrated a holiday called Samhain on October 31. After sunset that day， people believed that spirits of the dead would rise and walk the earth. The Celts made offerings of food and drink to keep the spirits away.

Beginning about 2，000 years ago， the Roman Empire conquered many Celtic peoples. But Celtic traditions， including Samhain， remained strong in areas such as Ireland and Scotland， even after the Roman conquest.

The Roman Catholic Church tried to replace Samhain in 835 with All Saints' Day， a day to honor saints of the Church. The eve of All Saints' Day is October 31. It is called Allhallows or Hallowmas by the Church.

最古老的万圣节传统之一来自于古老的凯尔特人,很久以前住在欧洲西部和中部。凯尔特人庆祝一个节日叫夏末节10月31日。日落之后那一天,人们相信死者的灵魂会上升,地球走。凯尔特人的食品和饮料保持精神献祭。

大约在2000年前开始,罗马帝国征服了许多凯尔特民族。但凯尔特传统,包括夏末节,保持强劲的地区如爱尔兰和苏格兰,即使在罗马征服。

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罗马天主教会试图取代835年夏末节所有圣徒的日子,纪念圣徒教会的一天。万圣节前夕是10月31日。它被称为万圣节或万圣节的教堂。