St. Patrick's Day is celebrated on March 17th and originated in Ireland. It is a day to celebrate Irish culture through parades, dancing, wearing green, and eating traditional foods like corned beef and cabbage or Irish soda bread. Important symbols of the holiday include the shamrock, which represents the holy trinity, leprechauns and their pots of gold, and the color green which is associated with Ireland's landscape. Parades, especially in New York City and Boston, are a hallmark of St. Patrick's Day celebrations in the United States.