英文原文：
Halloween originates from the ancient Celtic festival of Samhain. People believed that on October 31st, the boundary between the living and the dead became blurred. They would wear costumes and light bonfires to ward off ghosts. Later, with the spread of Christianity, November 1st was named All Saints' Day, and the night before became known as All Hallows' Eve, eventually evolving into Halloween.
中文翻译：
万圣节起源于古代凯尔特人的萨温节。人们相信在10月31日这天，生者与死者之间的界限会变得模糊。他们穿着奇装异服并点燃篝火以驱赶鬼魂。后来，随着基督教的传播，11月1日被定为诸圣瞻礼日（All Saints' Day），前一天晚上则被称为诸圣前夕（All Hallows' Eve），最终演变成了今天的万圣节。
