The origin of Halloween dates back to the period of the Celts of Medieval Europe, 2,000 years ago. They believed that this day marks the end of the harvest season, and the beginning of dark winter, often associated with death. However, the gloomy and macabre origins have evolved over time into a fun festival of trick-or-treating, carving pumpkins into jack-o-lanterns, horror storytelling, lighting bonfires and masquerades. Here’s our party planner to get you into the mood for some chills and horrors — dress up as supernatural figures in masks and hats to ward off the ghosts or go door-to-door hunting for candies. In other words, brace yourself for a hectic weekend ahead!