Purim marks the Jewish people’s deliverance from a royal death decree around the fourth century BCE, as told in the Book of Esther. Many Jewish Americans celebrate Purim on the 14th day of the month of Adar in the Jewish calendar, which is in February or March in the Gregorian calendar. According to many sources, the celebrations begin at around sunset on the 13th day of Adar, while other sources mention that Purim is observed on the 15th day of Adar