All Hallows' Eve, commonly known as Halloween, is celebrated on October 31st each year. It marks the evening before All Saints' Day, a Christian holiday that honors all saints, known and unknown. The origins of Halloween can be traced back to ancient Celtic festivals, particularly Samhain, when people believed that the boundary between the living and the dead was blurred. Traditions associated with All Hallows' Eve include dressing in costumes, trick-or-treating, and carving jack-o'-lanterns. These customs have evolved over time, blending ancient practices with modern celebrations. Today, Halloween is widely recognized as a fun and festive occasion for people of all ages.