Purim is a Jewish holiday that celebrates the saving of the Jewish people from Haman, an official in the Persian Empire, as told in the Book of Esther. It is observed on the 14th day of the Hebrew month of Adar, typically falling in late winter or early spring. During Purim, people engage in festive activities such as reading the Megillah (the Scroll of Esther), giving gifts of food to friends, and donating to the needy. Many also dress in costumes and enjoy a celebratory meal, making it a joyful and communal occasion.