【万圣节的由来英文版简单】Halloween is a popular holiday that happens every year on October 31st. Many people celebrate it by wearing costumes, going to parties, and trick-or-treating. But do you know where Halloween comes from?

Halloween started a long time ago in ancient times. It was first celebrated by the Celts, who lived in what is now Ireland, the United Kingdom, and parts of France. The Celts believed that on the night before the new year, which was November 1st, the boundary between the living and the dead became thin. They thought that ghosts could come back to the world of the living.

To protect themselves, the Celts would light fires and wear scary masks. They also left food outside their homes to please the spirits. This tradition helped them feel safe during the dark and cold season.

Later, when Christianity spread to these areas, the church tried to replace some of the old traditions with Christian ones. They changed the date of the festival to October 31st, which became known as All Hallows' Eve. Over time, this name was shortened to "Halloween."

Today, Halloween is more about fun than religion. People dress up as witches, ghosts, and other characters. Kids go door-to-door asking for candy with the phrase "Trick or treat!" Adults have parties and decorate their houses with pumpkins and skeletons.

In summary, Halloween has its roots in ancient Celtic traditions and later became a mix of pagan and Christian customs. Now it's a fun holiday that people around the world enjoy.